Sen. John McCain (?-Ariz.), joining with liberal Armed Services Committee Chairman Sen. Carl Levin (D-Mich.), issued a report last week on the abuse of terrorist detainees. The report accuses former defense secretary Donald Rumsfeld, former Defense Department General Counsel Jim Haynes, and David Addington, Vice President Cheney’s chief of staff, of causing the torture of terrorist detainees. But the report is a clumsy calumny, contradicting the factual conclusions of earlier, far more credible investigations. Predictably, it was enough for the New York Times to call for the appointment of a prosecutor to consider criminal charges against Rumsfeld and the others....