U.S. Air Force Col. Garry Little, commander of Air Force Office of Special Investigations (AFOSI) Region 1, gives remarks at a dedication ceremony for a memorial wall, Nov. 29, 2017. The wall, prominently displayed in the lobby of the OSI building here, features portraits of the 16 AFOSI members killed in the line of duty. According to the organization’s website, AFOSI has been the Air Force’s major investigative service since 1948. (U.S. Air Force photo/Eric White)