355th SFS
U.S. Air Force Staff Sgt. Ian Porter, 355th Security Forces Squadron military working dog handler, and Mushe, military working dog, search vehicles for explosives on Davis-Monthan Air Force Base, Ariz., Jan 9, 2012. Explosives had been hidden in a trailer park and Mushe had to find them as part of his training. (U.S. Air Force photo by Airman 1st Class Josh Slavin/Released)