It's the commies, stupid
A chorus of leftwing voices is rising up to heap scorn on 9/11 conspiracy theorists. This sudden surge of leftist vocalization seems to be in direct proportion to the success of the 9/11 truth movement in convincing at least one in three Americans that treason occurred on that fateful day.
Just look at the post below. Clearly, to dump on critics of the official conspiracy theory requires a malicious blindness. These people are marching to a secret drummer, and that drummer is most likely the communist conspiracy. Notice that no matter how much the reds crack down in China, the Bush bunch maketh much sound and fury which signifieth nothing.
Perhaps 9/11 wasn't only a communist power grab. But the party certainly felt that it had much to gain by backing that maneuver.