My brother sent me this link:
http://www.freedomunderground.org/memoryhole/pentagon.php#Main
and this one:
http://www.apfn.org/apfn/flight77.htm
Among other things, they suggest that the hole in the Pentagon is way too neat and clean to be made by a 757, and that the plane in the video/still captures is way smaller than a 757. They imply that it could be a missile.
If there are any other threads already open about this, I apologize for being repetitive. I took a good look through GQ and did a quick search, didn’t find anything. Opinions/debunkings?