Air Force 1
The White House has said that Air Force 1 was also a target and this is why it took so long to fly from Florida. Surely they don't expect us to believe that the terrorists were going to seek out, find and destroy a 747 using another commercial aircraft. Were they going to ask New York center for vectors to the intercept and what about the protected airspace that normally surrounds the President's aircraft. I think Bush was probably locked in the bathroom and didn't want to come out.