Right now, government shills are working hard to trick web sites into running the claim that a passenger jet did not really hit the Pentagon.
This is an old intelligence trick called "Poisoning the well", the intentional promotion of lies to blend with an embarrassing truth to discredit it. The government shills are trying to conceal real news stories such as the Israeli Spy Ring and its connections to the attacks on the World Trade Towers. So, we get hoax stories poured onto the net by government propagandists, to be used by the media to attack the credibility of anyone who dares doubt the official story.
UPDATED: Image links fixed.