Bomb dog

AP Photo/Brennan Linsley

Ringo, a 3-year-old black Labrador retriever, used as an off-leash bomb-sniffing dog, stands with U.S. Marine Corps dog handler Lance Cpl. William Childs at U.S. Marine Combat Outpost Geronimo in Afghanistan.
AP Photo/Brennan Linsley

Highly trained dogs such as Ringo, which are part of the Improvised Detection Dog program, have become a part of the process by which U.S. forces help prevent bomb attacks.
AP Photo/Brennan Linsley

Ringo runs at the command of U.S. Marine Corps dog handler Lance Cpl. William Childs, left, as trainer Adam Ward, a contractor working for American K-9 Interdiction looks on.
AP Photo/Brennan Linsley
AP Photo/Brennan Linsley