Here are a couple of videos to hopefully show the ridiculousness that many people are adhering to. The idea that it was not a plane but a missle that hit the Pentagon is a farse that I am not sure why people are so adament about trying to prove.
The second video shows what happens when a plane traveling that fast CAN accually disintegrate or "atomize". I say this because people say that there are no remainders of the plane. Actually there were scraps of it left as seen in the video above. Also the fact that it created such a small hole does NOT mean that it was something smaller than a plane. That just means that the only thing that penetrated the building what a small portion of the plane.