A U.S. soldier with the NATO led International Security Assistance Force (ISAF) walks Jan. 19, 2012, by a damaged vehicle at the scene of a suicide attack in Kandahar south of Kabul, Afghanistan. The attacker blew himself up at an entrance to a sprawling base for U.S. and NATO operations in southern Afghanistan, killing at least six civilians, police said. (Associated Press)

Photo by: Allauddin Khan

A U.S. soldier with the NATO led International Security Assistance Force (ISAF) walks Jan. 19, 2012, by a damaged vehicle at the scene of a suicide attack in Kandahar south of Kabul, Afghanistan. The attacker blew himself up at an entrance to a sprawling base for U.S. and NATO operations in southern Afghanistan, killing at least six civilians, police said. (Associated Press)