Another couple of things that crossed my mind over this weekend:

If nine of the 19 hijackers are still alive (and so easy to track down that we even know their current jobs), then why aren't these guys being paraded before the world as proof that they played no part in what is being claimed actually happened?

The other question was, if the three planes in question were not actually passenger planes, then what has become of the missing planes, or more importantly, the persons that were to be on these flights?  That's a mighty big sacrifice for the aganda in question.  Were they hustled out of the airports in buses or flown elsewhere, and detained or eliminated? 

Bear in mind I'm not saying that valid questions weren't raised.  It's just that in my mind every question just leads to another question.