NEVADA NERO 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 on Nellis Air Force Base, Nev., Dec. 16, 2010. Ohm, a military working dog handler is assigned to the 99th Security Forces Squadron. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 665515-R-VPT53-805.jpg Photo Gallery