After the fourth anniversary of September 11, American forces remain in Afghanistan and Iraq. The conflicts there and in the larger War on Terror have produced a growing number of prisoners, confined, in part, at Guantanamo Bay, Cuba. There is great concern, nationally and internationally, about the conditions and legal rights of the detainees. The concern was, of course, exacerbated by the scandal at Abu Ghraib prison. Recently, there have been calls by some American politicians for the closing of the Guantanamo facility....