WTC7 seems to be a classic controlled demolition. WTC 1 &2 destruction appears to have been enhanced by thermate (a variation of thermite) in addition.
Pentagon was not struck by a passenger aircraft. It was a drone or missle.
Wednesday, August 02, 2006
Bloglines - CNN: Qana building not hit by Israeli strike, but collapsed on residents
CNN's Ben Wedeman, who was at the site, reported that no ordinance actually hit the building, but hit the ground nearby, creating a large crater. He speculated that the concussive impact cause the nearby four-story apartment to collapse.