An American judge has said he has "grave doubts" about whether he has the right to rule on the treatment of prisoners captured in Afghanistan and detained by the military in Cuba. A group of civil rights advocates is challenging the detention of 158 al-Qaeda and Taleban prisoners at the Guantanamo Bay naval base, saying it violates international law and the United States constitution. But during a 20-minute hearing in Los Angeles, District Judge Howard Matz did not rule on a petition from the groups demanding that the US Government identify the men, disclose specific reasons for their detention and ...