[greencreeper]

The only thing I can think of, having seen the video, is that it was an American missile. Consider that either (a) the missile is a secret; (b) the American government didn't want to admit to shooting down a plane full of its own people; or (c) both. If two missiles were fired and one missile missed either because of targetting error or because the first missile destroyed the plane close to the Pentigon, that would explain the damage.

The trouble with these conspiracy theories is that we rely on the "evidence" and "facts" given to us - we have no first hand knowledge. It means that whatever interpretation or explanation we come up with is likely to be flawed. I don't think we (the public) ever hear the full story - just what our Governments think we should hear. It's the concept of the "national interest" - someone deciding for us.