VEHICLE SEARCH U.S. Air Force Tech. Sgt. George Shepherd directs his military working dog, Aris, to search inside a vehicle for prohibited items outside Bagram Airfield, Afghanistan, July 26, 2011. Shepherd is a military working dog handler assigned to the 455th Expeditionary Security Forces Squadron. The canine’s heightened sense of smell makes it a valuable asset in detecting and preventing illegal drugs and explosives from entering Bagram Airfield. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 645486-L-UWD46-850.jpg Photo Gallery