Air Force Chief of Staff, Gen. Norman A. Schwartz, speaks about the significance of the F-22 Raptor during a formal delivery ceremony at Lockheed Martin Aeronautics Company, Marietta, Ga., May 2, 2012. The last production aircraft, number 4195, was flown to Joint Base Elmendorf-Richardson, Alaska, by Lt. Col. Paul Moga, 525th Fighter Squadron commander. (U.S. Air Force photo/Brad Fallin)