The most likely theory of what hapened at the Pentagon
I think that it is most likely that it was a small plane that flew into the Pentagon. There were a lot of eye witnesses who swore they saw a plane fly into the Pentagon, so that makes the missile theory hard to explain. The speed that the plane was flying at before it hit the Pentagon could account for the witnesses judgments of the size of the plane being inaccurate. If it was a plane that hit the Pentagon, it would have to be of much smaller size, because it did not cause the massive damage to the Pentagon that a Boeing 757 would of, and the hole didn't match the wingspan. The dates on the 5 frames caught by the camera being wrong also point to 9/11 being caused by the government, because they would have influence to change these sort of things.