OK, OK, I know this is an old thread but with the rescent anniversary I've been watch the documentarys aswell as printing out a 440 page document on 9/11, and have several problems with it.
1. The Pentagon is one of the most secure building in the world (even before 9/11) and the only video they have of the "Plane" crashing in to the Pentagon is crap 1 second frame video, surely this building would have better video than a corner shop. Even banks have better video.
2. The "plane" happened to crash into a largely unoccupied section of the building which was being/had been refurbished.
3. The "Planes" engines are approx 6ft across, and weigh about 1 ton, and theres not even a mark from the 1 ton engines which were travelling at around 500mph.
http://911research.wtc7.net/