0:00:02 > 0:00:05This programme contains some strong language.
0:00:05 > 0:00:06- Holy fuck!- Oh, my God!
0:00:06 > 0:00:11We all remember how the Twin Towers were destroyed on 9/11.
0:00:11 > 0:00:15It's gone...the whole tower. Holy crap.
0:00:15 > 0:00:18SHOUTING AND SCREAMING
0:00:18 > 0:00:23But there was a third huge skyscraper that collapsed that day.
0:00:25 > 0:00:30Unlike the Twin Towers, no plane hit Tower 7.
0:00:30 > 0:00:33Keep your eye on the building. It'll be coming down soon.
0:00:33 > 0:00:38What could cause a seemingly sound 47-storey building to collapse?
0:00:40 > 0:00:44In the building, I heard explosions. Outside, I heard explosions.
0:00:44 > 0:00:48The building began to shake and it was as if you were in an earthquake.
0:00:49 > 0:00:53Could one use a controlled demolition on any building? Sure.
0:00:53 > 0:00:57Did it happen to WTC7 on 9/11? No, it did not.
0:00:59 > 0:01:02But now, seven years on, the official report has finally been released.
0:01:02 > 0:01:04Will it answer the many questions
0:01:04 > 0:01:08surrounding Tower 7's extraordinary collapse?
0:01:08 > 0:01:12The reason for the collapse at World Trade Center 7 is no longer a mystery.
0:01:12 > 0:01:17World Trade Center 7 collapsed because of fires fuelled by office furnishings.
0:01:17 > 0:01:20It did not collapse from explosives.
0:01:20 > 0:01:23But that makes this the first and only skyscraper in the world
0:01:23 > 0:01:26to have collapsed because of fire.
0:01:26 > 0:01:30CHANT: Wake up! Don't be afraid! Wake up! Don't be afraid!
0:01:30 > 0:01:34Critics say there are many unanswered questions and claim it's a cover up.
0:01:34 > 0:01:37We will not stop until we get a real investigation.
0:01:37 > 0:01:41The official report given is unscientific and full of mistruths.
0:01:41 > 0:01:47We talk to witnesses who have become central figures in the controversy.
0:01:47 > 0:01:50It hurts when you're being accused of mass murder.
0:01:50 > 0:01:55And look at new evidence to unravel the last great mystery of 9/11.
0:01:55 > 0:01:58You have to wonder how much of the truth have we been told?
0:02:21 > 0:02:26In the American West, the internet phenomenon that is Loose Change has come to town.
0:02:26 > 0:02:29This is no longer a fringe conspiracy.
0:02:29 > 0:02:32This is over half the American public that fully believe
0:02:32 > 0:02:35the 9/11 Commission is a cover up at the very least.
0:02:35 > 0:02:40We just know we've been lied to in a big way and that's why we need a new investigation.
0:02:40 > 0:02:44Loose Change claims a government conspiracy was behind the events of 9/11
0:02:44 > 0:02:48and the ensuing wars in Iraq and Afghanistan.
0:02:48 > 0:02:51Its makers say more than one hundred million people have seen the film,
0:02:51 > 0:02:55making it one of the most viewed internet movies ever.
0:02:55 > 0:02:58Now there's a new version for the big screen.
0:02:58 > 0:03:00Conspiracies have become big business.
0:03:00 > 0:03:03'Our entire foreign and domestic policy
0:03:03 > 0:03:07'has been based upon the events of September 11th.
0:03:07 > 0:03:11'It has enabled the passage of Patriot Act One and Two.'
0:03:11 > 0:03:13The Truth movement is heavily centred on Building 7.
0:03:13 > 0:03:15And for very good reason,
0:03:15 > 0:03:18a lot of people are very suspicious about what went down that day.
0:03:20 > 0:03:25Hidden behind the Twin Towers stood 7 World Trade Center.
0:03:25 > 0:03:29It was almost like the little sister of the two big towers.
0:03:29 > 0:03:32About half the size in height.
0:03:32 > 0:03:37And it struck me as a very modern well-constructed
0:03:37 > 0:03:39office building.
0:03:39 > 0:03:42It was a building that had a lot of security.
0:03:42 > 0:03:43There was always
0:03:43 > 0:03:46like police officers, undercover cops out front.
0:03:46 > 0:03:49It was very, very heavily guarded.
0:03:51 > 0:03:55On the outside an unremarkable building, but it had some unusual occupants.
0:03:55 > 0:04:00The Secret Service, The CIA, The Department of Defence
0:04:00 > 0:04:02and the Office of Emergency Management,
0:04:02 > 0:04:07which would coordinate any response to a disaster or a terrorist attack.
0:04:07 > 0:04:09You have to look at what was inside Building 7.
0:04:09 > 0:04:12You had the largest CIA field office,
0:04:12 > 0:04:14a number of government agencies in the building.
0:04:14 > 0:04:20So automatically, for a number of people, myself included, that is enough to at least raise an eyebrow.
0:04:20 > 0:04:23Some say the government had to demolish Tower 7 because
0:04:23 > 0:04:28it's where plans were hatched for a massive conspiracy on 9/11.
0:04:28 > 0:04:30Why building 7?
0:04:30 > 0:04:35Let's ask the question again. As the WTC Command Centre,
0:04:35 > 0:04:38was it the hub for the 9/11 plan?
0:04:38 > 0:04:44Freedom itself was attacked this morning by a faceless coward.
0:04:44 > 0:04:46And freedom will be defended.
0:04:47 > 0:04:52Some think the attack on the Twin Towers was orchestrated by the Bush administration
0:04:52 > 0:04:57and the hijacked aeroplanes were guided to their targets from Tower 7.
0:04:57 > 0:05:03Others believe the government also wanted to destroy key files held there about corporate fraud.
0:05:03 > 0:05:08After its collapse, a CIA team is reported to have scoured the rubble
0:05:08 > 0:05:10looking for secret documents.
0:05:10 > 0:05:13The people who knocked these buildings down will hear all of us soon.
0:05:13 > 0:05:14CHEERING
0:05:14 > 0:05:19Our government will willingly kill its own citizens for whatever gain it seems necessary
0:05:19 > 0:05:22and then lie as much as they need to to cover it up.
0:05:25 > 0:05:28It was the third tower to collapse that day,
0:05:28 > 0:05:32but its destruction was never mentioned in the 9/11 Commission Report.
0:05:32 > 0:05:35And the first official inquiry into Tower 7
0:05:35 > 0:05:40was unable to be definitive about what caused its collapse.
0:05:40 > 0:05:43Regardless of what you think happened to the building,
0:05:43 > 0:05:46it does look like and it does resemble a controlled demolition.
0:05:46 > 0:05:49I do believe, it's the first in architectural history,
0:05:49 > 0:05:53a steel high-rise building has collapsed simply because of damage and fire.
0:05:54 > 0:05:59Despite that, all the steel from the 47-storey skyscraper
0:05:59 > 0:06:02was taken away to be melted down.
0:06:04 > 0:06:09Some made its way into this new US navy vessel.
0:06:09 > 0:06:12But it turns out one section of steel was kept.
0:06:12 > 0:06:17How it got to be in its present state was described by the New York Times as
0:06:17 > 0:06:21"perhaps the deepest mystery uncovered in the investigation."
0:06:21 > 0:06:22There's parts where
0:06:22 > 0:06:27the entire half inch of the beam is gone.
0:06:27 > 0:06:32Entirely dissolved, right through and so some something happened to cause the steel
0:06:32 > 0:06:35to really thin and in some places to disappear entirely.
0:06:37 > 0:06:41Critics say if you look carefully at the events of that day
0:06:41 > 0:06:45there's precious little evidence of damage or fire in Tower 7,
0:06:45 > 0:06:48but plenty of unexplained questions
0:06:48 > 0:06:50that suggest something far more sinister.
0:06:55 > 0:06:59Tuesday 11th of September 2001
0:06:59 > 0:07:03started like any other working day in downtown New York.
0:07:03 > 0:07:06But as these pictures were being filmed that morning,
0:07:06 > 0:07:09something extraordinary was already underway.
0:07:11 > 0:07:16Early that morning, the fire alarm system for the entire Building 7
0:07:16 > 0:07:19was "placed on test" because of "routine maintenance".
0:07:19 > 0:07:24For the next 8 hours "any alarms received from the system"
0:07:24 > 0:07:26are to be ignored.
0:07:27 > 0:07:34An hour later, American Airlines Flight 11 leaves Boston's Logan International Airport.
0:07:34 > 0:07:36We have a problem here.
0:07:36 > 0:07:40We have a hijacked aircraft headed towards New York, and we need you guys to...
0:07:40 > 0:07:44we need someone to scramble some F-16s or something up there, help us out.
0:07:44 > 0:07:48- Is this real world or exercise?- No, this is not an exercise, not a test.
0:07:53 > 0:07:57At 8:46, a Boeing 767 slammed into the North Tower.
0:07:57 > 0:07:59Holy shit!
0:07:59 > 0:08:04It was carrying around 10,000 gallons of jet fuel.
0:08:07 > 0:08:10I watched it. I seen it go around I heard the boom.
0:08:10 > 0:08:14See I thought, as soon as it happened, I said "Was it terrorists?"
0:08:14 > 0:08:18The fire department been waiting there, like they were waiting for them to come in.
0:08:18 > 0:08:22And I said, "What is the fire department just sitting there for? Is it a conspiracy?"
0:08:22 > 0:08:23I heard a boom.
0:08:23 > 0:08:26SIRENS WAIL
0:08:28 > 0:08:32Straight away, the emergency operations plan was put into action
0:08:32 > 0:08:36and police, fire, health and other teams were called to Tower 7.
0:08:39 > 0:08:40Holy shit!
0:08:40 > 0:08:45A second Boeing 767 laden with jet fuel hit the South Tower.
0:08:45 > 0:08:48Two more planes had been hijacked.
0:08:48 > 0:08:51And the order was given to evacuate civilians from Tower 7.
0:08:51 > 0:08:53The police department and Intel
0:08:53 > 0:08:55and FBI, they were telling us
0:08:55 > 0:08:57we had a plane hit us in the Pentagon,
0:08:57 > 0:09:01and we now realise, it didn't take too long to realise we were under attack.
0:09:01 > 0:09:04What building would be attacked next? Tower 7?
0:09:04 > 0:09:08It could have been a target, I felt, because of where we were.
0:09:08 > 0:09:11It could have been a serious target. Plus the other federal agencies.
0:09:11 > 0:09:15In an emergency, we were supposed to go
0:09:15 > 0:09:20and huddle and plan and strategise with Mayor Giuliani
0:09:20 > 0:09:25in the Emergency Manager Center on the 23rd floor. That was the plan.
0:09:27 > 0:09:29But the decision is taken to evacuate
0:09:29 > 0:09:33the very office designed to respond to a terrorist attack.
0:09:33 > 0:09:35Oh, they're jumping!
0:09:35 > 0:09:39But not everyone leaves. Unaware of the evacuation order,
0:09:39 > 0:09:43two city officials head up to the 23rd floor.
0:09:43 > 0:09:48They are about to be trapped inside a building on the verge of destruction.
0:09:48 > 0:09:51They have become key witnesses
0:09:51 > 0:09:56in the controversy over what really happened inside Tower 7.
0:09:56 > 0:09:59I didn't realise, and maybe that's a good thing,
0:09:59 > 0:10:01I didn't realise how close I was to death.
0:10:01 > 0:10:06Everyone had been evacuated, except the two of us, who actually
0:10:06 > 0:10:11made the huge error of going back into the building and upstairs.
0:10:11 > 0:10:13- SIREN BLARES - When Barry Jennings
0:10:13 > 0:10:17reaches the Office of Emergency Management, he is shocked.
0:10:17 > 0:10:20To my amazement, nobody's there.
0:10:20 > 0:10:25I saw coffee that was still hot, it was still smouldering.
0:10:25 > 0:10:29They had screens all over the place, the screens were blank.
0:10:29 > 0:10:32So I didn't know what was going on.
0:10:32 > 0:10:37And at that time, I received a phone call from one of my higher ups
0:10:37 > 0:10:39and he said, "Where are you?"
0:10:39 > 0:10:43And I said, "I'm at the Emergency Command Centre."
0:10:43 > 0:10:47A long pause, and then he came back and he said,
0:10:47 > 0:10:50"Get out of there, get out of there now."
0:10:54 > 0:10:59At 9:59, the 1,300 foot South Tower collapses.
0:11:32 > 0:11:35Debris and dust are thrown over a huge area.
0:11:35 > 0:11:39And Tower 7 doesn't escape.
0:11:43 > 0:11:47These are some of the only pictures of Building 7 at that moment.
0:11:51 > 0:11:54Just over a minute later, the fire alarm in Tower 7 is triggered.
0:11:54 > 0:11:59But because it's on test, there's no information about where the fires are.
0:12:01 > 0:12:04- What happened? - The side of the building came down.
0:12:04 > 0:12:06Something fell?
0:12:06 > 0:12:08What did you see?
0:12:09 > 0:12:14It was pretty clear at one point, then this whole bunch of smoke and glass.
0:12:14 > 0:12:18I think we're just about the last ones in this building right now.
0:12:18 > 0:12:20I think you should leave. Everybody else has gone.
0:12:20 > 0:12:23I wanted to get out of that building in a hurry.
0:12:23 > 0:12:28So I started, instead of taking one step at a time, I'm jumping landings.
0:12:28 > 0:12:35When I reached down to the sixth floor, there was this eerie sound. The whole building went dark.
0:12:36 > 0:12:41A great deal of smoke came into the stairway, the sprinklers went on,
0:12:41 > 0:12:45I hit a wall and I was ahead of Barry
0:12:45 > 0:12:48and the building started to shake.
0:12:51 > 0:12:56At 10:28, the North Tower collapses in just 11 seconds.
0:12:59 > 0:13:04This time, Tower 7 takes a direct hit from the collapsing building.
0:13:16 > 0:13:18According to the official account,
0:13:18 > 0:13:20this is the start of a chain of events
0:13:20 > 0:13:24that will ultimately lead to the collapse of Tower 7.
0:13:29 > 0:13:33The World Trade Center complex in the heart of downtown Manhattan
0:13:33 > 0:13:38contained seven buildings occupied by many of the world's leading financial companies.
0:13:38 > 0:13:44The Twin Towers rose above the site, more than 1,300 feet tall.
0:13:44 > 0:13:51Tower 7 was 610 feet tall, and just 350 feet away from the North Tower.
0:13:51 > 0:13:54As the North Tower collapsed, debris hit Tower 7
0:13:54 > 0:13:57and fires were immediately reported in the building.
0:13:59 > 0:14:04Early evidence of explosives or just debris from a falling skyscraper?
0:14:05 > 0:14:08Barry Jennings and Michael Hess
0:14:08 > 0:14:12were still trapped inside on the eighth floor.
0:14:12 > 0:14:16Outside these big glass windows, the wind was blowing,
0:14:16 > 0:14:21papers and ash were flying all over the place.
0:14:21 > 0:14:24And it was just like the end of the world.
0:14:25 > 0:14:28They heard sounds that unnerved them.
0:14:28 > 0:14:32Sounds interpreted by others as evidence of explosives.
0:14:32 > 0:14:36The building began to shake, and it was as if you were in an earthquake.
0:14:36 > 0:14:41I've never really been in one, but it's what it felt like - the whole building was shaking.
0:14:43 > 0:14:46The first explosion I heard when I was on the stairwell landing,
0:14:46 > 0:14:49when we made it down to the sixth floor.
0:14:49 > 0:14:53Then when we made it back to the eighth floor I heard some more explosions.
0:14:53 > 0:14:55EXPLOSION
0:14:55 > 0:14:57What sort of sound?
0:14:57 > 0:15:01Like a boom, like an explosion.
0:15:01 > 0:15:04- And more than one?- Yes.
0:15:07 > 0:15:09It's seven years on from 9/11
0:15:09 > 0:15:13and we finally have the official explanation.
0:15:14 > 0:15:18Dr Shyam Sunder led a team of more than 50 investigators.
0:15:18 > 0:15:20It took three years of extensive research
0:15:20 > 0:15:23and cost millions of dollars.
0:15:23 > 0:15:27But they are confident the last mystery of 9/11 has been solved.
0:15:27 > 0:15:31Our science shows us in
0:15:31 > 0:15:35great certainty it was fires that caused the collapse of building 7.
0:15:35 > 0:15:40We know that it wasn't intentional demolition that caused the building to collapse.
0:15:40 > 0:15:45What we now know is it was fires that primarily caused the building to collapse.
0:15:45 > 0:15:48Every year, more police state!
0:15:48 > 0:15:52But this has not silenced the critics.
0:15:52 > 0:15:55Wake up! Don't be afraid! Wake up!
0:15:55 > 0:15:59For these protestors at Ground Zero on the anniversary of 9/11,
0:15:59 > 0:16:03this new report is further evidence of an official cover up.
0:16:07 > 0:16:11Leading the calls for a new investigation is a group called
0:16:11 > 0:16:14Architects and Engineers for 9/11 Truth.
0:16:14 > 0:16:16They question the official explanation
0:16:16 > 0:16:19and refuse to accept its findings.
0:16:19 > 0:16:24Richard Gage is a member of the American Institute of Architects.
0:16:24 > 0:16:27He's been an architect in California for 20 years.
0:16:29 > 0:16:35He set up the group, which now has around 500 professionals from around the world.
0:16:35 > 0:16:39No steel frame high-rise building has ever collapsed due to fire.
0:16:39 > 0:16:43And we have over a hundred examples from which to choose.
0:16:44 > 0:16:50In 1991, a fire in a Philadelphia skyscraper raged for 18 hours.
0:16:50 > 0:16:51But it didn't collapse.
0:16:54 > 0:16:59In 2005, a 32-storey building in Madrid burned for a whole day.
0:16:59 > 0:17:03There was a partial collapse but the building remained standing.
0:17:03 > 0:17:06Tower 7 burned for seven hours.
0:17:06 > 0:17:08The Madrid building burned for 24 hours
0:17:08 > 0:17:12and my understanding is that the steel around the perimeter was not fire proofed.
0:17:12 > 0:17:17In Building 7, we have a completely fire-proofed building to two and three hours.
0:17:17 > 0:17:22What's more, a series of experiments were carried out in these giant hangars
0:17:22 > 0:17:25in Cardington, Bedfordshire in the mid-1990s.
0:17:25 > 0:17:30They showed that steel buildings were more robust than previously thought.
0:17:30 > 0:17:34The Cardington tests in the UK were exemplary
0:17:34 > 0:17:39in that the steel did not collapse as a result of these tests.
0:17:39 > 0:17:43A purpose built eight-story steel building was set on fire.
0:17:43 > 0:17:47For a short time, the steel reached temperatures of more than
0:17:47 > 0:17:511,000 degrees centigrade, far hotter than in Tower 7.
0:17:51 > 0:17:57Ceiling beams did sag but no collapse was observed in any of the six experiments.
0:17:57 > 0:18:00I'm deeply troubled by the collapse of Building 7
0:18:00 > 0:18:03because if the official story is true,
0:18:03 > 0:18:06then what they're telling us is that our existing building codes,
0:18:06 > 0:18:13to which thousands of skyscrapers are currently designed with two and three hour fire protection,
0:18:13 > 0:18:15there's a serious problem.
0:18:16 > 0:18:21After being trapped for three hours, Barry Jennings and Michael Hess
0:18:21 > 0:18:24are finally led to safety through the lobby of the building.
0:18:24 > 0:18:31It was amazing! Because then, this big five-storey atrium was totally black and white.
0:18:31 > 0:18:35There were wires hanging down from everywhere that were black,
0:18:35 > 0:18:39and the rest of the whole lobby was white with ash.
0:18:39 > 0:18:42It was as if you, all of a sudden, had a black-and-white movie.
0:18:42 > 0:18:46When we get outside, a police officer comes and says, "You have to run.
0:18:46 > 0:18:50"We have more information of bombs, so you have to run."
0:18:50 > 0:18:55I ran for about two blocks and, after two blocks of running,
0:18:55 > 0:18:59I mean, obviously, curiosity got a hold of me
0:18:59 > 0:19:03and I said I wanted to turn around and I almost couldn't believe it
0:19:03 > 0:19:08and my mind is trying to process what happened to these 100-storey buildings.
0:19:08 > 0:19:10When I got to the 19th block,
0:19:10 > 0:19:12Channel Seven says, "Can we talk to you?"
0:19:12 > 0:19:15I said, "I need an ambulance." "Let's talk quickly."
0:19:15 > 0:19:19We started walking down the stairs. We made it to the eighth floor.
0:19:19 > 0:19:22Big explosion blew us back into the eighth floor.
0:19:22 > 0:19:24'All this time, I didn't know it.'
0:19:24 > 0:19:28All this time somebody had called my wife, told her I'd died in the building.
0:19:28 > 0:19:31Big explosion... 'Who comes over the TV set?'
0:19:31 > 0:19:32Whose voice comes over? It's mine.
0:19:32 > 0:19:36And my sister said, "Wait a minute. That's Barry right there."
0:19:36 > 0:19:38I said, this is it. We're dead.
0:19:38 > 0:19:43We're not going to make it out of here. I took a fire extinguisher and I bust the window out.
0:19:43 > 0:19:49My wife comes back down the stairs and says, "Wait! Is this live? Because we were told he was dead."
0:19:49 > 0:19:54And the little caption in the corner, left hand corner of the TV set said it was live.
0:19:57 > 0:20:00The two tallest buildings in New York had just collapsed
0:20:00 > 0:20:04cutting the water mains and severely hindering fire fighting.
0:20:04 > 0:20:10Fire boats were brought in to pump what water they could from the Hudson River.
0:20:10 > 0:20:14Just after midday, fire fighters were watching Tower 7 nervously.
0:20:14 > 0:20:19The Deputy Chief of the New York Fire Department that day remembers the scene.
0:20:19 > 0:20:24We had our special operations people surveying instruments to monitor
0:20:24 > 0:20:26see if there was any movement of the building.
0:20:26 > 0:20:29We were concerned of the possibility of collapse.
0:20:29 > 0:20:33We had a discussion with one particular engineer there,
0:20:33 > 0:20:35and we asked him if we allowed it to burn
0:20:35 > 0:20:39could we anticipate a collapse and if so how soon?
0:20:39 > 0:20:42It turned out that he was pretty much right on the money,
0:20:42 > 0:20:46that he said, in its current state, you have about five hours.
0:20:46 > 0:20:51Some people have interpreted this anticipation of collapse as evidence
0:20:51 > 0:20:55that the fire department and others were planning its destruction.
0:20:56 > 0:21:03Silverstein, a commercial real estate tycoon with international political connections acquired...
0:21:03 > 0:21:07And the owner, Larry Silverstein, has also been accused of being part
0:21:07 > 0:21:09of a huge conspiracy to destroy the buildings.
0:21:09 > 0:21:14It all stems from a TV interview when he used the phrase "pull it".
0:21:14 > 0:21:16I remember getting a call
0:21:16 > 0:21:19from the fire department commander telling me they weren't sure
0:21:19 > 0:21:22they were gonna be able to contain the fire.
0:21:22 > 0:21:25And I said, "We've had such terrible loss of life,
0:21:25 > 0:21:27"maybe the smartest thing to do is pull it."
0:21:27 > 0:21:32And they made that decision to pull. Then we watched the building...
0:21:32 > 0:21:34From here, we watched the building collapse.
0:21:34 > 0:21:39My personal response to his comment is that he was, um...
0:21:39 > 0:21:44involved in a decision to bring the building down.
0:21:44 > 0:21:47But who knows what he was thinking or saying?
0:21:47 > 0:21:49This is just speculation.
0:21:50 > 0:21:53Critics say just two months before 9/11,
0:21:53 > 0:21:59Larry Silverstein took out a 3.5 billion dollar insurance policy on the Twin Towers,
0:21:59 > 0:22:03a policy that would pay out in the event of a terrorist attack.
0:22:03 > 0:22:08But without this policy Larry Silverstein would not have been able to buy the buildings,
0:22:08 > 0:22:11and the insurance was not just for terrorism.
0:22:12 > 0:22:17The insurance on Tower 7 dated from 1987 when it was built.
0:22:17 > 0:22:21You don't say "We made the decision to pull it," which refers to something.
0:22:21 > 0:22:24You wouldn't say that about a group of firemen.
0:22:24 > 0:22:28You would say, "We made a decision to pull them out of the building."
0:22:29 > 0:22:34Larry Silverstein denies any involvement in any possible conspiracy.
0:22:34 > 0:22:38CHANT: Arrest Larry! Arrest Larry! Arrest Larry!
0:22:38 > 0:22:43- And there's no evidence to suggest he was.- Arrest Larry!
0:22:43 > 0:22:45Is there a simpler explanation?
0:22:50 > 0:22:54The fire chief who was forced to assume command of New York's rescue operation that day
0:22:54 > 0:22:58had narrowly escaped death with the collapse of the South Tower.
0:22:58 > 0:23:01It was like the surface of another planet.
0:23:01 > 0:23:03All there was was
0:23:03 > 0:23:06powdered debris and metal.
0:23:06 > 0:23:09It was a very strange scene.
0:23:10 > 0:23:14Emergency teams scoured the wreckage desperately searching for survivors,
0:23:14 > 0:23:17among them hundreds of their own friends and colleagues.
0:23:17 > 0:23:21At three o'clock, with the condition of Tower 7 deteriorating rapidly,
0:23:21 > 0:23:25Chief Nigro was forced to make an impossible choice.
0:23:25 > 0:23:33The biggest decision was to make an evacuation zone around building 7, to pull everyone away,
0:23:33 > 0:23:35to stop the rescue efforts that were going on,
0:23:35 > 0:23:37which was very difficult to do
0:23:37 > 0:23:41because there were people trapped still,
0:23:41 > 0:23:45and to step back, to step back and wait.
0:23:45 > 0:23:49But was Larry Silverstein really giving the orders?
0:23:49 > 0:23:52We don't need to ask permission from the owner, no.
0:23:52 > 0:23:55When we're in charge of the building, we're in charge
0:23:55 > 0:23:58and that decision would be the fire chief's and his alone.
0:23:58 > 0:24:01That's why I know there is no conspiracy,
0:24:01 > 0:24:06because for me to be part of that would be obscene
0:24:06 > 0:24:10and it disgusts me to even think of it.
0:24:12 > 0:24:16At 5.21pm, Tower 7 finally collapses.
0:24:18 > 0:24:24The 47-storey skyscraper and its contents are pulverised to dust.
0:24:24 > 0:24:26A sixth grader can look at
0:24:26 > 0:24:29this building falling at virtually free-fall speed,
0:24:29 > 0:24:34symmetrically and smoothly, and see that it is not a natural process.
0:24:34 > 0:24:38Buildings that fall in natural processes
0:24:38 > 0:24:40fall to the path of least resistance.
0:24:40 > 0:24:43They don't go straight down through themselves.
0:24:44 > 0:24:47Tower 7 was a large skyscraper.
0:24:47 > 0:24:54At 610 feet high, it had 47 floors each the size of a football field.
0:24:54 > 0:24:57There were only a few places foundations could be put down
0:24:57 > 0:25:01because it was built over a subway and an electricity substation.
0:25:01 > 0:25:06So long beams were needed to take the weight of the building on the east side, on the right here,
0:25:06 > 0:25:10and it had to be reinforced on the fifth to seventh floors,
0:25:10 > 0:25:14and also between the 22nd and 24th floors.
0:25:14 > 0:25:21It had 82 columns, 58 columns around the edge and 24 core columns inside.
0:25:21 > 0:25:25In order for the perimeter to fall
0:25:25 > 0:25:31perfectly and symmetrically, which it pretty much does, Building 7,
0:25:31 > 0:25:37all of those columns have to be removed within a tenth of a second of each other.
0:25:37 > 0:25:39Fire cannot do that.
0:25:39 > 0:25:41Controlled demolition can.
0:25:41 > 0:25:46Did Building 7 collapse because of damage from the falling North Tower
0:25:46 > 0:25:49or was it also a controlled demolition?
0:25:49 > 0:25:52Loose Change has found one demolition expert
0:25:52 > 0:25:57with 28 years experience who thinks he knows what happened.
0:25:57 > 0:26:00When shown the video for the first time he was taken aback.
0:26:22 > 0:26:24And you're sure it was the 11th?
0:26:24 > 0:26:28- That can't be.- Seven hours after the World Trade Center.
0:26:28 > 0:26:32Really? Then they worked hard.
0:26:32 > 0:26:34AUDIENCE LAUGHS
0:26:36 > 0:26:39But it's not a view shared by other demolition experts.
0:26:44 > 0:26:50Controlled Demolition Incorporated is one of the world's leading demolition companies.
0:26:51 > 0:26:56They were consultants to the official report on the collapse of building 7.
0:26:57 > 0:27:00Mark Loizeaux has been in this family business all his life.
0:27:00 > 0:27:03He knows what it takes to bring a building down.
0:27:03 > 0:27:05The largest steel structure
0:27:05 > 0:27:09we've taken down which I think is still a Guinness record is
0:27:09 > 0:27:12the J L Hudson building in Detroit.
0:27:16 > 0:27:17It took months to design it.
0:27:17 > 0:27:24It took months to prepare the structure for the placement of the explosive charges, months.
0:27:24 > 0:27:26It's noisy.
0:27:26 > 0:27:29There's just no way to get around it.
0:27:29 > 0:27:36You go in you knock out usually all the walls on the floors where you place explosives, gut them.
0:27:36 > 0:27:40Then there's the placing of all the hundreds of explosive charges,
0:27:40 > 0:27:44plus literally miles of initiating cable and miles of detonating cord.
0:27:44 > 0:27:50Is it actually possible to have done a controlled demolition of a building like Building 7
0:27:50 > 0:27:55and it to be occupied and no-one to have seen anything?
0:27:57 > 0:27:59In a screenplay, in a movie,
0:27:59 > 0:28:02something with Bruce Willis in it maybe.
0:28:02 > 0:28:04In reality, no.
0:28:06 > 0:28:10But the architect Richard Gage has an answer for that.
0:28:10 > 0:28:14It's possible, although this is mere speculation, that the explosives
0:28:14 > 0:28:21could have been planted prior to each floor being remodelled,
0:28:21 > 0:28:27or during such remodelling or even during the initial erection of the building.
0:28:27 > 0:28:30When would that be? What sort of dates would you get into for that?
0:28:30 > 0:28:33The building was built in the eighties.
0:28:34 > 0:28:36Really?
0:28:40 > 0:28:41I don't know what to say to that.
0:28:41 > 0:28:45These explosives have a life expectancy. They have a shelf life.
0:28:45 > 0:28:49Some of the ones manufactured in this country they say use within three years,
0:28:49 > 0:28:51or you can't trust them to go off at all.
0:28:54 > 0:28:57The official investigators specifically looked
0:28:57 > 0:29:00at the theory of controlled demolition.
0:29:00 > 0:29:02They determined the smallest charge needed
0:29:02 > 0:29:07to destroy just one column in Tower 7 was 9lbs of explosives.
0:29:07 > 0:29:11But even that would've produced a huge noise.
0:29:11 > 0:29:15What we found is that about a mile away
0:29:15 > 0:29:18from this particular site, we would have a sound level
0:29:18 > 0:29:22of somewhere between 130 and 140 decibels,
0:29:22 > 0:29:25which would be as loud as a jet plane engine
0:29:25 > 0:29:27or being in front of speakers at a rock concert.
0:29:31 > 0:29:33Investigators say that sound was not picked up
0:29:33 > 0:29:36by any videos or witnesses that they talked to.
0:29:38 > 0:29:43But what about sounds eyewitnesses heard inside Building 7?
0:29:43 > 0:29:45When the North Tower collapsed,
0:29:45 > 0:29:48some of the debris that hit the building
0:29:48 > 0:29:50scooped out the southern face of the building,
0:29:50 > 0:29:55causing a lot of window damage, causing a lot of exterior columns
0:29:55 > 0:30:00to be broken in the lower south west corner as well as the very top.
0:30:00 > 0:30:04So it's likely that all of those huge failures and damage really caused
0:30:04 > 0:30:07noises that were incredibly loud.
0:30:09 > 0:30:14And one crucial eyewitness, who assumed there'd been an explosion in Building 7,
0:30:14 > 0:30:17is now clear it was something else.
0:30:17 > 0:30:22My position - and I'm quite firm on it -
0:30:22 > 0:30:24there were no explosions.
0:30:24 > 0:30:28Did I feel the building shake? Absolutely.
0:30:28 > 0:30:30And I recollect that.
0:30:30 > 0:30:36And I know now that that was caused by the northern half of number one
0:30:36 > 0:30:41falling on the southern half of our building.
0:30:44 > 0:30:47But what about those sounds of explosions recorded
0:30:47 > 0:30:52after the Twin Towers had fallen but before Tower 7's collapse?
0:30:53 > 0:30:55LOUD EXPLOSION
0:30:57 > 0:31:00The official explanation is that these sounds were caused
0:31:00 > 0:31:05by exploding fuel tanks in the many vehicles around Ground Zero
0:31:05 > 0:31:10and the enormous steel beams that were breaking and falling inside Tower 7.
0:31:10 > 0:31:14All of that could have led to noises in the building
0:31:14 > 0:31:19which seemed like explosions, sudden sounds.
0:31:22 > 0:31:24When you're dealing with charges this size,
0:31:24 > 0:31:29the amount of air that's displaced will break windows easily.
0:31:30 > 0:31:33Mark Loizeaux was at Ground Zero three days after 9/11
0:31:33 > 0:31:36to help organise the removal of debris.
0:31:36 > 0:31:39He also advised the official investigation
0:31:39 > 0:31:43on what a real controlled demolition would be like.
0:31:43 > 0:31:47There were a lot of broken windows, mainly from impact of debris.
0:31:47 > 0:31:51But I didn't see windows broken on the backs of buildings,
0:31:51 > 0:31:55only where debris falling from the Towers struck it.
0:31:55 > 0:31:58But come round the back side, no.
0:31:58 > 0:32:02Windows weren't broken there. They were shielded from debris falling.
0:32:02 > 0:32:07If explosives of the magnitude necessary to cut the columns in a big building were detonated,
0:32:07 > 0:32:10the windows all the way round would have been shattered.
0:32:10 > 0:32:12No way round it.
0:32:12 > 0:32:16And they would leave behind some unmistakable signs of explosives.
0:32:16 > 0:32:20In a structure taken down with explosives, you'd find these tubes.
0:32:20 > 0:32:25You'd likely find the upper part of this cap, where the delay element is.
0:32:27 > 0:32:31Every inch of the site was picked over by hundreds of people.
0:32:31 > 0:32:34No-one reported any signs of explosives.
0:32:40 > 0:32:44Up in Utah, there's a scientist who thinks he has an explanation.
0:32:44 > 0:32:49Steven Jones' theory was not looked at by the official investigators.
0:32:49 > 0:32:52They only looked at conventional demolition.
0:32:52 > 0:32:57Professor Jones thinks he's found evidence of an unconventional demolition
0:32:57 > 0:33:02in the dust that's he analysed from the World Trade Center.
0:33:02 > 0:33:03It is rather like
0:33:03 > 0:33:07a DNA in an investigation.
0:33:07 > 0:33:13This dust carries all this information of what caused it, what created it.
0:33:13 > 0:33:19Professor Jones thinks there was a conspiracy to destroy Tower 7 and the Twin Towers
0:33:19 > 0:33:23using a strange substance that can quite literally melt steel.
0:33:23 > 0:33:29Thermite is a very active chemical reaction that produces molten iron spheres.
0:33:29 > 0:33:34The spheres you get from thermite matches the spheres I see in the World Trade Center dust.
0:33:36 > 0:33:39The dust he found contains iron oxide and aluminium.
0:33:39 > 0:33:41So does thermite.
0:33:45 > 0:33:47What do you think?
0:33:47 > 0:33:54I would say it melted out the whole side and went right through the aluminium.
0:33:54 > 0:33:59So, as the thermite reacts, it blows molten iron into the air,
0:33:59 > 0:34:03where it forms droplets due to surface tension.
0:34:03 > 0:34:07And then those solidify and form these little spheres.
0:34:10 > 0:34:14These iron-rich spheres can only be formed at very high temperatures.
0:34:14 > 0:34:20Steven Jones says the fires in the buildings before their collapse were not hot enough.
0:34:20 > 0:34:24Only a thermite reaction could have made them.
0:34:26 > 0:34:29But official investigators say these spheres could have been formed
0:34:29 > 0:34:33in the fires in the rubble after the collapse of the buildings.
0:34:33 > 0:34:37Debris can trap heat and lead to long-lasting and very hot fires.
0:34:37 > 0:34:43They also say that the ingredients found in thermite are not unusual.
0:34:46 > 0:34:50Iron oxide and aluminium are very common materials.
0:34:50 > 0:34:53They are used extensively in buildings.
0:34:53 > 0:34:57So the fact that aluminium and iron combined together
0:34:57 > 0:35:01in a chemical reaction under heat is not at all surprising.
0:35:03 > 0:35:06Steven Jones is undaunted.
0:35:06 > 0:35:11He thinks these red chips in the dust could be evidence of unreacted thermite.
0:35:11 > 0:35:15It's not an opinion shared by the official investigation.
0:35:15 > 0:35:20We feel very strongly that there was no credible hypothesis associated with thermite.
0:35:20 > 0:35:24I saw thermite once in high school.
0:35:24 > 0:35:27It was very impressive, but I've never seen anyone
0:35:27 > 0:35:30use a material which melts steel for demolition purposes.
0:35:30 > 0:35:38I don't see how you could possibly get all of the columns to melt through at the same time.
0:35:38 > 0:35:45On the internet there are references to secret formulations of thermite that have special properties.
0:35:45 > 0:35:48You can cut with thermite without a large explosion.
0:35:50 > 0:35:55You see. In other words, thermite you can formulate to burn rapidly or slowly.
0:35:57 > 0:36:01The key is nanothermite. Why won't people deal with super thermite?
0:36:01 > 0:36:04It's like they don't want to see it, I guess. I don't know.
0:36:04 > 0:36:05But it does exist.
0:36:05 > 0:36:08We have reports of it in a sol-gel form.
0:36:08 > 0:36:12It's very explosive. The sol-gel can be formed and shaped.
0:36:12 > 0:36:17I suppose you can keep saying, "But what if? What if? What if?"
0:36:17 > 0:36:22and you could go to fantasy land and make up whatever you wanted.
0:36:22 > 0:36:25It's just not real, it's not real.
0:36:25 > 0:36:29The materials and the technologies just aren't there.
0:36:29 > 0:36:31If they were, I'd know.
0:36:31 > 0:36:33Mark Loizeaux is not unbiased.
0:36:33 > 0:36:36Due to his very wealthy clientele
0:36:36 > 0:36:38he also works for the Federal Government.
0:36:38 > 0:36:41He can't come out and say
0:36:41 > 0:36:43this is a controlled demolition,
0:36:43 > 0:36:46if he doesn't want to lose many of his top clients.
0:36:47 > 0:36:50Is Mark Loizeaux part of a conspiracy?
0:36:50 > 0:36:54Or is it that anyone who contradicts the alternative theories
0:36:54 > 0:36:56is condemned as part of a cover up?
0:36:56 > 0:37:00But they say that you did work at Ground Zero, which you did.
0:37:00 > 0:37:05You've got the absolute perfect credentials for a government-paid demolition expert.
0:37:05 > 0:37:09And of course, you're going to say, "I didn't do it."
0:37:09 > 0:37:11But you absolutely fit the bill.
0:37:11 > 0:37:14I'd make a great terrorist, I suppose.
0:37:14 > 0:37:16Unfortunately, I don't have those inclinations.
0:37:18 > 0:37:21Since 9/11, other people have gone much further.
0:37:21 > 0:37:25Mark Loizeaux and his company have been the subject
0:37:25 > 0:37:29of a hate campaign and even accused of mass murder.
0:37:29 > 0:37:33I'm disturbed by 9/11. I'm disturbed by all of this.
0:37:33 > 0:37:37But I think there are ways to handle it and ways that you don't handle it.
0:37:37 > 0:37:42And you certainly don't terrorise, terrorise people
0:37:42 > 0:37:45like the good folks that work here and family members.
0:37:53 > 0:37:57A new building 7 was opened in 2006.
0:37:57 > 0:38:00It's thinner, but taller than the previous one.
0:38:00 > 0:38:03Over the last seven years,
0:38:03 > 0:38:07the work on clearing and rebuilding Ground Zero has continued.
0:38:07 > 0:38:13And new evidence has emerged which supports the official explanation that fire brought Tower 7 down.
0:38:16 > 0:38:19This is some of the only footage of the south face of the building
0:38:19 > 0:38:23and it shows the whole side engulfed in smoke.
0:38:23 > 0:38:29Until recently, most people have only seen the other sides where there was much less obvious damage.
0:38:29 > 0:38:34Richard Rotanz had to assess the damage to Tower 7.
0:38:34 > 0:38:36And crucially, he saw the south face
0:38:36 > 0:38:41just after the North Tower had collapsed slamming debris into it.
0:38:41 > 0:38:44Well, looking at the upper floors at Tower 7,
0:38:44 > 0:38:47you could see columns gone, floors collapsed,
0:38:47 > 0:38:49heavy smoke coming out and fire.
0:38:49 > 0:38:52The upper floors were an inferno.
0:38:52 > 0:38:56And then he had to go into that building to assess it.
0:38:57 > 0:39:00You could hear the building creak above us,
0:39:00 > 0:39:03you could hear things fall, you could hear the fire burning.
0:39:03 > 0:39:07You could see columns just hanging from the upper floors,
0:39:07 > 0:39:09gaping holes in the floors up above us.
0:39:09 > 0:39:13There was an elevator car that was blown out of the shaft and it was down the hall.
0:39:13 > 0:39:18This is the massive impact from the fall of Tower 1 onto Tower 7.
0:39:18 > 0:39:20We need volunteers for first aid.
0:39:24 > 0:39:26Raid the buses! Raid the trucks!
0:39:26 > 0:39:30One photographer was able to get close to Building 7
0:39:30 > 0:39:33because he was an honorary deputy chief in the Fire Department.
0:39:33 > 0:39:36- These are some his pictures. - You could see part of
0:39:36 > 0:39:39the south part of the building was damaged heavily.
0:39:39 > 0:39:44There was a big hole on the corner of the south side of the building.
0:39:44 > 0:39:49You could see part of the building has bowed out a little bit. To me, that's major structural damage.
0:39:49 > 0:39:53And there's smoke on a lot of floors on the south side of the building.
0:39:53 > 0:39:55I saw fire coming out some of these windows.
0:39:55 > 0:39:59And that, through my experience of taking fire photography for the last 30 years,
0:39:59 > 0:40:04to me that's an indication of extremely heavy fire condition and a dangerous fire condition.
0:40:04 > 0:40:08The architect Richard Gage is not impressed.
0:40:08 > 0:40:13He says the smoke on the south side may not be from Tower 7 at all.
0:40:13 > 0:40:17This is indicative of a negative pressure which
0:40:17 > 0:40:23drew the smoke from the World Trade Center 6 or 5
0:40:23 > 0:40:26that was burning quite severely.
0:40:26 > 0:40:30And there's no visible flames in any of that smoke.
0:40:30 > 0:40:33So it appears to not be coming from World Trade Center 7.
0:40:35 > 0:40:37It was from number 7.
0:40:37 > 0:40:43The smoke was coming out of the building, not going from the opposite direction, that's insane.
0:40:43 > 0:40:45It was coming out of the windows.
0:40:45 > 0:40:47You see it on the video, in the still pictures.
0:40:47 > 0:40:51There was heavy smoke. Numerous floors had fire on.
0:40:51 > 0:40:55The small pockets of travelling fires in this building,
0:40:55 > 0:40:59of which the official report claims there's about ten,
0:40:59 > 0:41:02we see maybe five or six from the outside,
0:41:02 > 0:41:06were not sufficient to weaken this building,
0:41:06 > 0:41:08modern fire-proofed, steel-framed building,
0:41:08 > 0:41:12to cause a global catastrophic collapse at free-fall speed.
0:41:15 > 0:41:18But a fireman who was there on the day is clear
0:41:18 > 0:41:21about the intensity of the fire.
0:41:21 > 0:41:22We saw the fire and the smoke
0:41:22 > 0:41:24on the south side of building 7.
0:41:24 > 0:41:27A lot of damage, a lot of damage.
0:41:27 > 0:41:31And a tremendous amount of smoke. I couldn't tell what floor it ended at.
0:41:33 > 0:41:37And he also saw the east side of Tower 7.
0:41:37 > 0:41:42The windows on approximately 10 to 15th floor of Building 7
0:41:42 > 0:41:44started to fail from the heavy fire inside.
0:41:44 > 0:41:48We looked at it and said, "There's so much fire in this building,
0:41:48 > 0:41:50"nobody's gonna put this fire out."
0:41:50 > 0:41:54Then after being told there was nothing more they could do to save Building 7,
0:41:54 > 0:41:57he walked away and witnessed its collapse.
0:41:57 > 0:41:59It sounded like a jet engine.
0:41:59 > 0:42:03And we looked over the buildings, you could see the top of building 7
0:42:03 > 0:42:06and it just started to shake and then just disappeared down.
0:42:06 > 0:42:10And it was down in about seven or eight or nine seconds.
0:42:10 > 0:42:12It was just gone.
0:42:12 > 0:42:16I saw the damage and that was good enough for me.
0:42:16 > 0:42:18I never heard any charges.
0:42:18 > 0:42:22I never heard any sequence of explosions, timed explosions.
0:42:26 > 0:42:31In the last few years, the scale of the alleged conspiracy has grown and grown.
0:42:31 > 0:42:36Not just the government and foreign intelligence, but police, fire service and even the media.
0:42:39 > 0:42:42Now, more on the latest building collapse in New York
0:42:42 > 0:42:45you may have heard moments ago. We'll find out more
0:42:45 > 0:42:49from correspondent Jane Standley. Jane, what more can you tell us?
0:42:49 > 0:42:53Well, only really what you already know. Details are very sketchy.
0:42:53 > 0:42:56But Tower 7 hadn't collapsed.
0:42:56 > 0:43:00'Where did CNN and the BBC get their information,
0:43:00 > 0:43:04'especially considering the building was still standing directly behind their reporters?'
0:43:07 > 0:43:10You have to put it in the context of a chaotic day.
0:43:10 > 0:43:16Our investigations suggest we were working on the basis of an incorrect news agency report.
0:43:16 > 0:43:19We had this statement from Reuters. What it says is,
0:43:19 > 0:43:22"On September 11th, 2001,
0:43:22 > 0:43:25"Reuters incorrectly reported that one of the buildings
0:43:25 > 0:43:30"at the New York World Trade Center, 7WTC, had collapsed before it actually did."
0:43:30 > 0:43:32Do you think that's suspicious?
0:43:32 > 0:43:36Not really. To be honest with you I didn't want to put that line in.
0:43:36 > 0:43:39But, you know, I'm not the only person on the team.
0:43:39 > 0:43:44I do think it's a little embarrassing on both the part of CNN and BBC.
0:43:44 > 0:43:50Even more embarrassing, the BBC lost key tapes of its 9/11 coverage.
0:43:50 > 0:43:52But we found them.
0:43:52 > 0:43:56It turned out they'd been put back on the wrong shelf.
0:43:56 > 0:43:592002 rather than 2001.
0:43:59 > 0:44:02Cock up rather than conspiracy.
0:44:04 > 0:44:08What of the reporter herself? She's never talked about this before.
0:44:08 > 0:44:12Jane Standley was a world affairs specialist and had just arrived in New York.
0:44:12 > 0:44:15The BBC quickly found a place to interview her.
0:44:15 > 0:44:18But she had precious little information to go on.
0:44:18 > 0:44:19I was thrown
0:44:19 > 0:44:22not a question but a statement of fact.
0:44:22 > 0:44:24I don't know where that came from.
0:44:24 > 0:44:27What can you tell us about the collapse?
0:44:27 > 0:44:31'Only really what you already know, details are very sketchy...'
0:44:31 > 0:44:34It's very difficult being in that position with no communications,
0:44:34 > 0:44:37no access to information, that comes out of left field.
0:44:37 > 0:44:39'Details are very sketchy.'
0:44:39 > 0:44:42It was very upsetting about a year ago
0:44:42 > 0:44:45because of the level of persecution and the virulence
0:44:45 > 0:44:47in which I was spoken about.
0:44:47 > 0:44:51It's very unfortunate that this whole conspiracy,
0:44:51 > 0:44:53I think a rather ridiculous situation,
0:44:53 > 0:44:58has grown out of what's really a very small and very honest mistake.
0:44:58 > 0:45:04Unfortunately, I think we've lost the line with Jane Standley in Manhattan.
0:45:04 > 0:45:09Even the way the interview ended is seen by some as evidence of a conspiracy.
0:45:09 > 0:45:15The BBC says there's a simple explanation for the interview ending abruptly.
0:45:15 > 0:45:18The satellite feed had an electronic timer,
0:45:18 > 0:45:21which cut out at quarter past five exactly.
0:45:23 > 0:45:29'This is the Alex Jones Show, on News Radio 590KLDJ...'
0:45:29 > 0:45:33Boom! There's a huge explosion. There's dead people all over the lobby.
0:45:33 > 0:45:37The cops say, "Don't look at them!" Remember they said that nobody died.
0:45:37 > 0:45:41But, folks, we have them. This is so huge.
0:45:41 > 0:45:46Every word used by eyewitnesses is picked over in a relentless search for a hidden truth.
0:45:46 > 0:45:50Conspiracy talk shows and websites seized on an interview
0:45:50 > 0:45:54for Loose Change with the crucial witness, Barry Jennings.
0:45:54 > 0:45:58There's no evidence that anyone died in Tower 7 on 9/11.
0:45:58 > 0:46:02But did Barry's interview suggest something else?
0:46:02 > 0:46:05The amount of detail Barry gave us was unreal.
0:46:05 > 0:46:07He says he was stepping over dead bodies in the lobby.
0:46:07 > 0:46:13Trouble is, Barry Jennings himself disagrees with their interpretation of his words.
0:46:13 > 0:46:15I didn't like the way
0:46:15 > 0:46:17I was portrayed.
0:46:17 > 0:46:21They portrayed me as seeing dead bodies. I never saw dead bodies.
0:46:21 > 0:46:28But Dylan Avery has a recording of his interview and he's unrepentant.
0:46:28 > 0:46:32'The fire fighter who took us down kept saying, "Do not look down."
0:46:32 > 0:46:34'And I kept saying, "Why?" He said, "Do not look down."
0:46:34 > 0:46:37'And we're stepping over people.
0:46:37 > 0:46:40'And you know you could feel when you're stepping over people.'
0:46:40 > 0:46:43I didn't take anything out of context.
0:46:43 > 0:46:46I said it felt like I was stepping over them but I never saw any.
0:46:46 > 0:46:50And you know, that's the way they portrayed me
0:46:50 > 0:46:53and I didn't appreciate that so I told them to pull my interview.
0:46:53 > 0:46:57Do I think our government would do something like that to its people?
0:46:57 > 0:46:59No, I honestly don't believe that...
0:46:59 > 0:47:04All I know that I was in there, heard what I heard, saw what I saw.
0:47:08 > 0:47:11In New England, the claims of the mysterious melted steel
0:47:11 > 0:47:14from Tower 7 has been unravelled.
0:47:15 > 0:47:18The scientist who tested the steel is adamant
0:47:18 > 0:47:22it wasn't caused by unconventional explosives like thermite.
0:47:25 > 0:47:28Well, it was attacked by what we determined was a liquid slag.
0:47:28 > 0:47:32When we did the analysis, we actually identified it
0:47:32 > 0:47:35as a liquid containing iron, sulphur and oxygen.
0:47:35 > 0:47:38You can see what it does is it attacks the grain boundaries
0:47:38 > 0:47:40and this bit would eventually have fallen out
0:47:40 > 0:47:42and continue the attack.
0:47:42 > 0:47:46Professor Sisson says it didn't melt, it eroded.
0:47:46 > 0:47:53The cause were those very hot fires in the debris after 9/11 that cooked the steel over weeks.
0:47:54 > 0:47:58When a NASA plane flew over Ground Zero after 9/11,
0:47:58 > 0:48:02the temperatures recorded were remarkably high.
0:48:02 > 0:48:05The highest temperature within Tower 7's footprint
0:48:05 > 0:48:08was 727 degrees centigrade.
0:48:08 > 0:48:11I don't find it very mysterious at all,
0:48:11 > 0:48:14that if I have steel in this sort of a high temperature atmosphere
0:48:14 > 0:48:16that's rich in oxygen and sulphur,
0:48:16 > 0:48:19this would be the kind of result I would expect.
0:48:22 > 0:48:26With no steel from Tower 7 to study,
0:48:26 > 0:48:30investigators at the National Institute of Standards and Technology
0:48:30 > 0:48:35created the most complex computer simulation of a building collapse ever made.
0:48:35 > 0:48:38NIST reconstructed the entire skyscraper
0:48:38 > 0:48:42right down to the smallest bolt and then set fire to it.
0:48:42 > 0:48:44A single computer run
0:48:44 > 0:48:47in the case of World Trade Center 7 took eight months
0:48:47 > 0:48:50compared to two months for the towers.
0:48:50 > 0:48:53Scientists are certain the building collapsed,
0:48:53 > 0:48:56because of fires that started when Tower 1 fell.
0:48:56 > 0:49:00These fires were mainly on floors 6 through to 13,
0:49:00 > 0:49:02except floor 10,
0:49:02 > 0:49:06and there were fires initially on some of the upper floors.
0:49:07 > 0:49:11The collapse of the Twin Towers also severed the mains water supply
0:49:11 > 0:49:14preventing fire fighters tackling the fires
0:49:14 > 0:49:17and, crucially, stopping the sprinkler system working.
0:49:17 > 0:49:19There's no way to put the fire out.
0:49:19 > 0:49:22We've got all kinds of water problems.
0:49:22 > 0:49:25The Two Trade buildings took out the mains.
0:49:25 > 0:49:28We can handle just about everything, but this is beyond.
0:49:31 > 0:49:34To explain Tower 7's collapse,
0:49:34 > 0:49:36it's vital to understand what was going on
0:49:36 > 0:49:40inside the building in the seven hours before it fell.
0:49:40 > 0:49:45Investigators focused on the east side, where the long floor spans were under most stress.
0:49:45 > 0:49:48Here, fires burnt long enough to weaken and break
0:49:48 > 0:49:52many of the connections that held the steel structure together.
0:49:52 > 0:49:58Most susceptible were the thinner floor beams which required less fireproofing,
0:49:58 > 0:50:01and the connections between the beams and the columns.
0:50:01 > 0:50:06As they heated up, the connections failed and the beams also buckled.
0:50:06 > 0:50:11Our analysis showed that it was the fires that, when it reached the north east corner,
0:50:11 > 0:50:15it really was the reason why this building collapsed.
0:50:15 > 0:50:19Unique to Building 7's collapse was thermal expansion.
0:50:19 > 0:50:23The steel beams heated up quicker than the concrete floors.
0:50:23 > 0:50:25As they expanded, the beams buckled,
0:50:25 > 0:50:29causing many floors and connections to fail.
0:50:29 > 0:50:33The weakening of those floors eventually led to the failure of a girder on floor 13,
0:50:33 > 0:50:38which caused the floors to start collapsing one on top of the other.
0:50:38 > 0:50:42And suddenly, you had a single column that was unsupported
0:50:42 > 0:50:44over a nine-storey length and that buckled.
0:50:44 > 0:50:46That initiated the collapse.
0:50:49 > 0:50:53For those self-styled Truthers, who think 9/11 was an inside job by the US government,
0:50:53 > 0:50:56no official report is going to convince them otherwise.
0:50:56 > 0:51:00For the seventh anniversary, many of them gathered
0:51:00 > 0:51:03at an event in New York called Now or Never.
0:51:03 > 0:51:07- APPLAUSE - Richard Gage flew in from California to speak to them.
0:51:07 > 0:51:10He was scathing about the official report.
0:51:11 > 0:51:15Let's get this started off with some evidence, what do you say?
0:51:15 > 0:51:17It can't tear, it can't bend, it can't crush.
0:51:17 > 0:51:21That means it is falling at free-fall speed
0:51:21 > 0:51:24and can't do any other work.
0:51:24 > 0:51:28This is a fundamental point for the critics.
0:51:28 > 0:51:32They say Building 7 falls at free-fall speed.
0:51:32 > 0:51:36Nothing in its huge steel structure slows its collapse.
0:51:36 > 0:51:39They argue it looks and acts like a controlled demolition.
0:51:39 > 0:51:43There is no resistance. The building would've slowed down
0:51:43 > 0:51:45in order for it to crush these columns.
0:51:45 > 0:51:49It didn't, meaning the columns had to have been removed.
0:51:49 > 0:51:53I have two 15-storey buildings that I'm gonna drop.
0:51:53 > 0:51:58Simple experiments don't lie. When I show this experiment to people,
0:51:58 > 0:52:01'they get it intuitively.' Ready, one, two, three.
0:52:01 > 0:52:05Oh, my God! The one that had no resistance under it
0:52:05 > 0:52:08falls at free-fall speed! What happens over here?
0:52:08 > 0:52:13The one that has 80,000 tons of structural steel on it,
0:52:13 > 0:52:15it doesn't even give.
0:52:17 > 0:52:20But investigators say columns hadn't been removed.
0:52:20 > 0:52:23They'd been weakened by fires.
0:52:23 > 0:52:27And what's more, the building did not collapse at free-fall speed.
0:52:27 > 0:52:30The scientists timed the fall of the top 17 floors
0:52:30 > 0:52:33before they disappeared from view.
0:52:33 > 0:52:35It took 5.4 seconds.
0:52:35 > 0:52:39A free-fall collapse will have taken 3.9 seconds.
0:52:39 > 0:52:45Clearly, the time that this building took to collapse was longer
0:52:45 > 0:52:51by almost 40-50% than the free-fall time of an object.
0:52:51 > 0:52:53Well, 40% is a lot longer.
0:52:53 > 0:52:57It's not 5%, it's 40%. It's huge.
0:52:57 > 0:53:00# Live free or die. #
0:53:04 > 0:53:07Good evening and welcome to Hardfire. I'm Ronald Wieck.
0:53:07 > 0:53:15A community TV station in New York hosts a regular programme aimed at debunking conspiracy theories.
0:53:15 > 0:53:20We're here at historic St Paul's Chapel on Broadway, where the Truthers are flocking.
0:53:20 > 0:53:26For the seventh anniversary of 9/11, they're filming the show at Ground Zero.
0:53:26 > 0:53:31I'm looking for someone seven years after the fact to tell me what happened seven years ago.
0:53:31 > 0:53:34Give me some kind of coherent narrative.
0:53:34 > 0:53:36A coherent narrative, um...
0:53:36 > 0:53:41Well, basically, there is evidence that shows 9/11 was an inside job.
0:53:41 > 0:53:46What happens if China came here and started building permanent bases here in the United States?
0:53:46 > 0:53:50'We hear all sorts of scattershot criticisms and we hear'
0:53:50 > 0:53:54outlandish theories that are eternally inconsistent.
0:53:54 > 0:53:58Why would the government attack its own citizens?
0:53:58 > 0:54:02Make sense of this to me. If you allege a conspiracy,
0:54:02 > 0:54:06then someone benefits. Show me who and how.
0:54:06 > 0:54:10I don't really know what happened. I have no idea.
0:54:10 > 0:54:12I don't think anybody in this movement knows.
0:54:12 > 0:54:15If there is... if there is a grand conspiracy,
0:54:15 > 0:54:18and something much larger behind the scenes than we've been told,
0:54:18 > 0:54:22it would probably be a little presumptuous of us to at least...
0:54:22 > 0:54:26to at least try to form some kind of cohesive story from start to finish.
0:54:26 > 0:54:28It would be setting ourselves up, you know.
0:54:28 > 0:54:32You do know that NIST just released its final report
0:54:32 > 0:54:34- on the collapse of WTC7? - PEOPLE SHOUT OVER HIM
0:54:36 > 0:54:39'These are beliefs. This is a faith.'
0:54:39 > 0:54:42Wake up! Don't be afraid!
0:54:42 > 0:54:46This is not a world view that's based on reality.
0:54:48 > 0:54:53The chief counter-terrorism adviser to President Bush on 9/11 was Richard Clarke.
0:54:53 > 0:54:58He was with Vice President Dick Cheney in the White House that morning.
0:54:58 > 0:55:00People who believe in conspiracy theories
0:55:00 > 0:55:05and particularly this one about WTC7 don't understand government
0:55:05 > 0:55:07and clearly have never worked in government.
0:55:07 > 0:55:11Anyone who's ever worked in government will tell you two things,
0:55:11 > 0:55:14that the government doesn't have the competence to do
0:55:14 > 0:55:16a large scale conspiracy like this,
0:55:16 > 0:55:19and number two, it can't maintain secrecy.
0:55:19 > 0:55:23There's almost nothing that I know of in 30 years
0:55:23 > 0:55:26of having top secret clearances that hasn't come out
0:55:26 > 0:55:29in the Washington Post and the New York Times.
0:55:29 > 0:55:33There can be no whitewash at the White House.
0:55:33 > 0:55:38So, there's no way this conspiracy
0:55:38 > 0:55:41of knocking down WTC7 could have happened.
0:55:42 > 0:55:44But he's got 30 years experience?
0:55:44 > 0:55:47I don't care what kind of fucking experience he has. I don't care.
0:55:47 > 0:55:51He's in the system. Of course he'll tell you those kinds of things.
0:55:51 > 0:55:56You honestly think he'll say, "Of course the government was part of it, of course there's a cover up."
0:55:56 > 0:56:00No, he'll fucking toe the party line and defend the government.
0:56:00 > 0:56:02He'll defend his ex-bosses. Come on, man.
0:56:03 > 0:56:06The former chief counter-terrorism adviser
0:56:06 > 0:56:10does not think there's anything mysterious about Tower 7.
0:56:10 > 0:56:14I was in the World Trade Center 7 on a number of occasions.
0:56:14 > 0:56:17This was an office building in downtown New York.
0:56:17 > 0:56:21The fact there were some government agencies in there is certainly true,
0:56:21 > 0:56:26but there were lots of others and you could have rented an office or floor, anybody could have.
0:56:28 > 0:56:30Sceptics reject the official report
0:56:30 > 0:56:35and also question the integrity of the scientists who worked on it.
0:56:36 > 0:56:40I don't know how to judge the good faith of the individuals at NIST.
0:56:40 > 0:56:43But if I were them, I wouldn't be sleeping well at night.
0:56:43 > 0:56:47CHANT: Osama bin Laden! CIA! Osama bin Laden! CIA!
0:56:47 > 0:56:51It's surprising that there's a community of people who don't
0:56:51 > 0:56:55accept solid science
0:56:55 > 0:57:01conducted by people with impeccable technical expertise.
0:57:01 > 0:57:05If you wanna know who did it, start researching secret societies!
0:57:05 > 0:57:09We really have not seen any coherent theory
0:57:09 > 0:57:13that really stands up to technical scrutiny.
0:57:14 > 0:57:17This is part of an ongoing cover up.
0:57:17 > 0:57:21The evidence exists. They are not letting it out.
0:57:21 > 0:57:24CHANT: Wake up! Don't be afraid! Wake up!
0:57:24 > 0:57:27'I guess everyone's entitled to their opinion.'
0:57:27 > 0:57:31It kind of angers me, because I was there.
0:57:31 > 0:57:36I've heard people talk about it that come from Cincinnati and California
0:57:36 > 0:57:40and wherever else they come from. I was here, you weren't.
0:57:42 > 0:57:46I think they have no respect for all the friends of mine that I lost
0:57:46 > 0:57:49and all the people that died. It's like a slap in their face.
0:57:49 > 0:57:55# Oh, say can you see by the dawn's early light... #
0:57:55 > 0:57:58Nearly 3,000 people died on 9/11,
0:57:58 > 0:58:02including 343 New York fire fighters.
0:58:02 > 0:58:06The man who was in charge that day hopes now,
0:58:06 > 0:58:10with the release of the official report on Tower 7,
0:58:10 > 0:58:13a painful chapter in America's history will end.
0:58:16 > 0:58:19Conspiracies can always be more exciting than the real thing,
0:58:19 > 0:58:22because you can always add to them. It makes for great fiction.
0:58:22 > 0:58:26And I enjoy great fiction myself, but when it comes to real life,
0:58:26 > 0:58:32I think we have to know that one side of the page is real life and one side is fiction,
0:58:32 > 0:58:33and draw the line between them
0:58:33 > 0:58:37and live in the real world and enjoy our fiction as fiction.
0:58:46 > 0:58:49Find out more about this programme and others
0:58:49 > 0:58:57in "The Conspiracy Files" series at our website bbc.co.uk/conspiracyfiles.
0:59:02 > 0:59:04Subtitles by Red Bee Media Ltd
0:59:04 > 0:59:06E-mail: subtitling@bbc.co.uk