>> I don't want to be involved

in conspiracy theories.

You know, there are lots of 'em

that could go on.

We could speculate on that

forever.

What we really need to know is

how, how those buildings came

down.

♪

>> My husband, Steve, was 48

years old when he was killed on

September 11, 2001.

He was in the North Tower on the

104th floor.

There are so many unanswered

questions and that's scary to

me.

We never had answers.

Nobody ever stopped to have a

scientific investigation.

A scientific investigation.

A scientific investigation.

♪

>> Tribute lights in the New

York skyline.

An annual memorial to the lives

lost on 9/11.

Yet there's still more light

that needs to shine revealing

truths that their family members

deserve to know.

September 11, 2001, a day that

changed history.

Four planes went silent and off

course.

Two of those planes crashed into

the World Trade Center Twin

Towers.

Several columns were severed

and the jet fuel ignited fires

that spread over several

floors.

About an hour later, millions

watched in shock as both towers

were suddenly and rapidly

destroyed, killing almost 3,000

people for whom truth and

justice may have yet to be

served.

♪

Hi, I'm Richard Gage, A.I.A,

licensed architect of over

twenty years and member of the

American Institute of

Architects.

I'm founder of Architects and

Engineers for 9/11 Truth, a

non-profit organization of well

over a thousand technical and

building professionals.

According to official government

reports, the fires weakened the

structural steel framing of both

Twin Towers, leading to sudden,

progressive, and total

collapses.

Unknown to most people, a third

steel-frame high-rise, World

Trade Center 7, was also

destroyed.

Critical questions have been

raised by more than 1,500

architects and engineers about

the official explanations for

the destruction of all three of

these buildings.

Along with more than 10,000

other concerned individuals,

these professionals,

collectively comprising more

than 25,000 years of experience,

have signed our petition.

They're calling for a new

investigation into the

destruction of these three World

Trade Center high-rises.

This call is based on evidence

that reveals a very different

destruction scenario than

reported by government

engineers.

As coherent sets of scientific

facts are brought into focus by

the experts, the data, and the

witnesses in this film, you'll

come to a much greater

understanding of the events of

9/11, and will be in a position

to draw your own informed

conclusions.

♪

♪

The new World Trade Center

Building 7 looms above the site

of its original.

Building 7 was a 47-story

high-rise not hit by an

airplane.

Yet it was the third modern

steel-frame skyscraper to

collapse rapidly and

symmetrically on 9/11.

It was a football field away

from the North Tower and

sustained minor damage from

falling debris.

Building 7's precipitous

collapse was blamed on normal

office fires.

>> I'm Steve Barasch, founder

and president of Barasch

Architects and Associates, Inc.,

a 33-year-old architecture

planning and engineering firm.

One of the things that, that

really interested me is how

quickly that Tower 7 fell.

It fell within seven seconds,

approximately, from top to

bottom.

This building was built in the

mid '80s and met all the codes

at the time.

>> From about 1965 until about

1985, my--

Most of my experience has been

in high-rise, multi-story steel

buildings.

NIST would have us to

believe that these were--

Was a typical office fire.

Scattered office fires, if you

will, that brought this building

down.

Since the mid '60s, I've tried

to follow high-rise fires

because they're something we

worry a lot about as we

design these buildings, and I'm

not aware of any high-rise

building that have come down as

a result of fires.

>> The coup de grâce for me was

when I found out that Building 7

had collapsed later that day,

and when I saw Building 7 come

down, to me, the fact that it

looks like a perfect controlled

demolition of an intact

building.

♪

I mean, that's what I call a

smoking gun.

♪

>> Was the structural steel from

World Trade Center 7 preserved,

documented, analyzed according

to standard procedures for

investigating engineering

failures?

>> Four hundred truck loads per

day of material were taken away

from the World Trade Center site

and sent to China for recycling.

>> There were laws violated in

the destruction of that

evidence, and for the American

Society of Civil Engineers to