Staff Sgt. Bobbie Ohm walks with Nero to search for explosives during a joint explosive detection training.
U.S. Air Force Staff Sgt. Bobbie Ohm walks with Nero, a working military dog, to search for explosives during a joint explosive detection training exercise at Nellis Air Force Base, Nev., on Dec. 16, 2010. Ohm, a military working dog handler, is assigned to the 99th Security Forces Squadron.