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Paratroopers from the U.S. Army's 82nd Airborne Division jump from a McGuire Air Force Base, N.J., C-17 Globemaster III during an event for McGuire Air Expo 2008 May 31. The expo drew more than 170,000 visitors over two days and it was the culminating event for Air Force Week in Philadelphia. (U.S. Air Force Photo/Tech. Sgt. Scott T. Sturkol)