There were two unprecedented events to cover the diversion of the real planes: the massive exercises being done by the Air Force that day, and the blackout of air traffic control for 45 minutes on the plane that supposedly hit the Pentagon.

One theory is that there is a silent coup going on in our military, but I really think part of the reason for it all is to weed out the government workers who might not go along with the program. If they'll put up with this, they can be trusted to put up with anything-- even the eventual concentration camps already built in the desert.