aparently the reason for the small hole is that most of the plane crumped or incinirated or something. and because of the strength of the walls it was forced through the small opening caused by the front of the place. but the fbi taking tapes away is suspicious...
it seems that the pentagon is all but forgotten as well, especially when compared to the WTC.
but i all realism, there probobly is no grassy knoll (as there wasnt for JFK as it has been proven. or is that what they want us to think
) in this case, consiriousies are probobly far less likely than you would want to belive.