Mark Steyn nails the entire idiocy of the 9-11 "Truth" movement in a single sentence:

There’s a kind of decadence about all this: If 9/11 was really an inside job, you wouldn’t be driving around with a bumper sticker bragging that you were on to it.

Exactly.  If George W. Bush and Dick Cheney were as evil and ruthless as the nutroots often claim, there wouldn't be any nutroots - because their leaders would have long ago had then names jotted down on a list and then dissappeared or, alternatively, been placed on a list nailed to the door of the Capitol and proscribed.