Last night, along with the bill reopening the government, the Senate confirmed Stephen W. Preston, the top lawyer at the C.I.A., to move to the Pentagon to serve in the same role there. The vote slipped by unnoticed by most, but on close inspection, it revealed previously unreleased documents that lift the lid on an unusual standoff between Congress and the Obama Administration’s C.I.A. At its core is a bitter disagreement over an apparently devastating, and still secret, report by the Senate Intelligence Committee documenting in detail how the C.I.A.’s brutalization of terror suspects during the Bush years was unnecessary, ineffective, and deceptively sold to Congress, the White House, the Justice Department, and the public.