There was a video shortly after 9/11 that was from the north side of the Pentagon which clearly showed a missile or other non-airplane object striking the building. Besides the suction from the Earth would have sucked a plane going that low and at that speed into the ground before striking the building similarly to race cars and the downforces that suck them to the racetrack.
Inquiring minds want to know:
1. Why nobody in Virginia along the path of the "plane" reported an extremely low flying 500 mph airplane?
2. Why no video has surfaced showing an actual airplane?
3. If it wasn't an airplane, where are the passengers and crew members who presumably didn't die at the scene? And...
4. If it wasn't a plane, where is the airplane since only three actually hit buildings or the ground?
Hell, we saw recently the clear outline of an airplane being hit by a helicopter at the airport less than 1/4 miles across the freeway from the Pentagon...at night!
Opens up a lot more conspiracy theories and it's 137 - 0 in favor of the theorists of late.