US airspace is clear of all civilian air traffic, with the exception of a small number of law enforcement and emergency operations aircraft. Otherwise, only military aircraft are airborne. [Federal Aviation Administration, 9/18/2001; Federal Aviation Administration, 4/15/2002; USA Today, 8/12/2002] The FAA’s Command Center in Herndon, Virginia, announces that the airspace has been successfully shut down. [Spencer, 2008, pp. 269] At 9:26 a.m., the Command Center ordered a national ground stop that prevented any aircraft from taking off (see (9:26 a.m.) September 11, 2001), and at 9:45 a.m. it ordered FAA facilities to instruct all aircraft to land at the nearest airport (see (9:45 a.m.) September 11, 2001). Since then, about 4,500 commercial and general aviation aircraft have landed without incident. This is the first time ever that all civilian aircraft in the United States have been grounded. [US Congress. House. Committee On Transportation And Infrastructure, 9/21/2001; Federal Aviation Administration, 3/21/2002; 9/11 Commission, 7/24/2004, pp. 29] Author Pamela Freni will later comment that this clearing of the skies was “a tremendous feat accomplished by a huge team that had never even practiced this part of the game before.” Frank Hatfield, the air traffic division manager for the FAA’s eastern region, will comment: “What we did on September 11 was done amazingly well. It was almost like World War II, the way the airplanes were handled.” [Freni, 2003, pp. 69] At 12:30 p.m., the FAA will report that there are 50 flights in US airspace, but none of them are reporting any problems. [CNN, 9/12/2001]