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Senior Master Sgt. Stephen Santos, 566th Intelligence Squadron first sergeant, works in his office April 2, 2014, on Buckley Air Force Base, Colo. Santos was selected for chief master sergeant in the supplemental list, becoming 1 of 25 chief first sergeants in the Air Force. (U.S. Air Force photo by Senior Airman Phillip Houk/Released)

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Photo by: Senior Airman Phillip HoukReleased |  VIRIN: 140401-F-YL660-026.JPG