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Iraqi detainees pray at the Camp Cropper detention center in Baghdad, Iraq, Sept. 19, 2007. U.S. forces have a total of some 25,000 detainees in several centers in Iraq, up from only about 14,000 before the American troop surge this year. The detainee population includes insurgents from all anti-coalition groups in Iraq, Al Qaeda foreign fighters as well as many innocent Iraqis caught up in U.S. military raids.