WTC 1&2

If it had just been the impacts of plane crashes and fires the Twin Towers of the World Trade Center would still be standing today.
Watch the film clip of a January, 2001 interview with Frank deMartini, project manager for the World Trade Center, and his explanation of the impact of an airplane on the World Trade Center.
http://www.youtube.com/watch?v=1pvEge5HPJU
There’s also a very cool video on the construction of the World Trade Center
http://www.youtube.com/watch?v=__gUjUv1vvw