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GUANTANAMO BAY, CUBA - MARCH 30: (EDITORS NOTE: Image has been reviewed by the U.S. Military prior to transmission.) U.S. Navy guards escort a detainee after a "life skills" class held for prisoners at Camp 6 in the Guantanamo Bay detention center on March 30, 2010 in Guantanamo Bay, Cuba. U.S. President Barack Obama pledged to close the prison by early 2010 but has struggled to transfer, try or release the remaining detainees from the facility, located on the U.S. Naval Base at Guantanamo Bay, Cuba. (Photo by John Moore/Getty Images)

GUANTANAMO BAY, CUBA - MARCH 30:  (EDITORS NOTE: Image has been reviewed by the U.S. Military prior to transmission.) U.S. Navy guards escort a detainee after a "life skills" class held for prisoners at Camp 6 in the Guantanamo Bay detention center on March 30, 2010 in Guantanamo Bay, Cuba. U.S. President Barack Obama pledged to close the prison by early 2010 but has struggled to transfer, try or release the remaining detainees from the facility, located on the U.S. Naval Base at Guantanamo Bay, Cuba.  (Photo by John Moore/Getty Images)