First off, I have no idea. I'm not saying that this is true. I'm just saying that there's something there, even if it's answerable in an intelligent manner. So far, however, nothing I've seen has done so.

Second, to be fair, while the takeoff and crash points were not very far from each other, flight 77 had made it to about the KY/WV/OH border before it turned around, or they lost radar contact, or whatever.

I'll admit that this is far-fetched, but it's conceivable that the plane was shot down by US military and that the Pentagon attack was something else, say a missile. And then the government covered it up for some reason, transporting the dead from the Appalachians to DC. Now, I don't believe that for a minute, but it's feasible.