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Photo by: J. Scott Applewhite

Marine Gen. John Allen, the top U.S. commander in Afghanistan, tells the House Armed Services Committee on Capitol Hill on March 20, 2012, that efforts to hand over security to the Afghans and wind down the decade-plus war are on track despite recent anger over a U.S. soldier's alleged massacre of Afghan civilians and the burning of Korans. (Associated Press)

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