I heard that it was cancelled because it wasn't a "large enough" terrorist attack. I've often wondered if those "people" believe that if they attack America then it has to be a big attack since its America.
Hm. I don't know. I can't begin to imagine what the mind of an A.Q. is like (in terms of inflicting pain), but why would they want to keep hitting NYC? If they're so damn smart and worldly, wouldn't they want to spread the fear?