I guess time will tell.
I remain a skeptic involving the American government while the gulf of tonkin incident, operation northwoods and attack on the liberty stain them with deception. If the twin towers prove to be an inside job it blows away all the other reasons for war... the propaganda machine continues.
Yes, if the US government conducted the 9/11 attack then I would agree that everything else will be invalidated regardless of intentions and outcome.
And yeah, the waiting game, although not as fun, will reveal more than the debating/discussing/bickering game.