An Afghan policeman stands guard at the site of a suicide bombIng in Kandahar city, south of Kabul, Afghanistan, on Tuesday, July 20, 2010. The explosives were hidden in a cart topped with bottles of juice for sale, Afghan officials. Two civilians were injured in the blast. (AP Photo/Allauddin Khan)

Photo by: Allauddin Khan

An Afghan policeman stands guard at the site of a suicide bombIng in Kandahar city, south of Kabul, Afghanistan, on Tuesday, July 20, 2010. The explosives were hidden in a cart topped with bottles of juice for sale, Afghan officials. Two civilians were injured in the blast. (AP Photo/Allauddin Khan)