Let's kick a dead and humiliated horse, shall we?
Vérinage is a demolition technique where the support structures are pulled inward by a series of cables and pulleys and the top collapses onto the bottom. When you watch close ups of the twin towers collapses you can see the walls being pulled in (by the sagging floors) and then they collapse, just like in vérinage . Twoofers say the top block of the WTC should have fallen onto the lower part and then stopped because... of their bizarre misunderstanding about physics.
They also say there was too much dust generated by the collapses and that only a high explosive controlled demolition could generate that much dust.
The music is horrible so mute it as quickly as you can.
