9:45 A.M. - An operator receives a cell phone call from a passenger on
United
Airlines Flight 93, who reports that the flight has been hijacked and
that the passengers are going to fight back.
9:45 A.M. - The FAA orders all airborne aircraft, over 4500, to land
at nearest airport.
9:48 A.M. - The White House's West Wing and the U. S. Capitol are evacuated.