I've been thinking to myself since this "Memogate" on Able Danger came up in the last couple of days...They keep saying Atta's Al Queda cell was the Brooklyn cell. But we all know Atta was in Florida going to flight school, not Brooklyn. What if Atta entered the US on a false passport at some unknown date and established himself in Brooklyn first, travelled outside the country and reentered using his own name when it was time to do the flight school thing. Does anyone know how many passports Atta had under different names and nationalities? He is supposed to be Egyptian, but when he tried to get the loan for the crop duster from the Dept of Ag and was turned down, the lady who interviewed him said he pointed at a picture of DC on the wall and said something like "How would Americans like that city bombed like his country had been bombed?" Maybe he was using an Iraqi or Palestinian passport at the time?
See this for some thoughts on new info about Atta's activities:
http://www.captainsquartersblog.com/mt/
And this on how Gorelick's 'wall' may have pervaded a lot more than the FBI and ensured that federal officials could not pursue Atta:
http://www.freerepublic.com/focus/f-news/1462140/posts?page=86#86