It's 1 hour long but totally worth it.
There's no doubt after watching it that those building collapses were due to explosives. Who could've orchestrated those explosives? Cavemen from Afghanistan led by Bin Laden? Of course not! It's not far fetched to think that this was all done by the military industrial complex as a pretext to invade a bunch of countries (never forget the +1 million innocent civilians that died in Iraq).