Airman 1st Class Humberto Alcocer leads the honor guard during a ceremony recognizing the last mission of the C-141 "Hanoi Taxi" on Friday, May 5, 2006, at the National Museum of the United States Air Force in Dayton, Ohio. Airman Alcocer is a member of the Wright-Patterson Air Force Base honor guard, and is with the 88th Medical Operations Squadron. (U.S. Air Force photo/Tech. Sgt. Larry A. Simmons)