GUANTANAMO BAY, CUBA - OCTOBER 22: (EDITORS NOTE: Image has been reviewed by the U.S. Military prior to transmission.) A prisoner paces before evening prayers at the "Gitmo" detention center on October 22, 2016 at the U.S. Naval Station at Guantanamo Bay, Cuba. The U.S. military's Joint Task Force Guantanamo is still holding 60 detainees at the prison, down from a previous total of 780. On his second day in office in 2008 President Obama issued an executive order to close the prison, which has failed because of political opposition in the U.S. (Photo by John Moore/Getty Images)
