Colin Powell is already on record as saying similar things. So has Wesley Clark. So did John McCain, before his recent (and typically dishonorable) flip-flop.
Do you see a pattern here? Actual military officers -- the experts on effective conduct of war -- say torture is bad strategy and Gitmo has long since become counterproductive. Meanwhile, chickenhawk draft-dodgers like Dick Cheney strut around saying the opposite, with (in Cheney's case) an ever-increasing air of desperation.