How about if when the Terrorists pulled their dinky little razorblades out, the 50 passenger's on the plane kicked the shit out of the four or five terrorists instead

Hit them with a fire extinguisher, maybe.
Or just put a fucking marine or some shit on board to kick the shit out of them. I think if Osama had been planning something else he would've done it while America was damaged and weak in the aftermath, and if he had a nuke in the americas he would've exploded something already.
Unless he's waiting for something... like maybe after we get iraq all under control he'll explode it. That'd be great. Or maybe he'll splode something else. But why wait, you lose the crippling effect, I doubt Osama is an idiot.
"Let's destroy something, wait for them to rebuild their economy and damages, and then do it all over again! Yea, we know how to goto war and destroy a country."
I think maybe he thought hitting the World Trade Center would've fucked everything up for a long time, but it didn't, so now he's planning on crashing an airplane into the whitehouse or something. Or there's some deeper conspiracy behind it.
"Besides, we don't even know how much they knew about "hi-jacking". It could have meant a boat, car, tank, oil truck, helicopter, or any number of other things."
From what I understand there was an FBI report.. reported about suspected terrorists taking Plane lessons and what-not, and it was ignored.