A 21-year-old citizen of Chad who has been held for seven years at the U.S. military prison at Guantanamo Bay in Cuba must be released, a federal judge ruled on Wednesday. U.S. District Judge Richard Leon said the government had not proven that Mohammed el Gharani was an enemy combatant and the detainee must be freed and sent home soon either to Saudi Arabia, where he was raised and his family lives, or Chad. Leon's ruling comes just before President-elect Barack Obama, who has vowed to close the prison camp, takes office on Tuesday. Since Obama's election in November, federal...