 Afghan policemen stand at the site of explosion in Khost City, capital of Khsot Province in eastern Afghanistan, June 27, 2009. An Afghan contractor with U.S.-led international troops was killed and two others sustained injuries as a bomb exploded in the back of their car in Khost City on Saturday.(Xinhua Photo)
 An Afghan walks past the site of explosion in Khost City, capital of Khsot Province in eastern Afghanistan, June 27, 2009.(Xinhua Photo)
 An Afghan man stands beside the body of Hajji Mirza Ali, a contractor who supplies non-military items for U.S.-led Coalition forces, in Khost City, capital of Khsot Province in eastern Afghanistan, June 27, 2009. (Xinhua Photo)
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