The treatment of detainees at Abu Ghraib prison, Guant namo Bay, and far-flung CIA "black sites" after the attacks of 9/11 included cruelty that defied legal and normative prohibitions in U.S. and international law. The antitorture stance of the United States was brushed aside. Since then, the guarantee of American civil liberties and due process for POWs and detainees has grown muddled, threatening the norms that sustain modern democracies. How...