In a major blow to the Justice Department, one of its biggest leak prosecutions in years all but collapsed late Thursday when federal prosecutors withdrew all their felony charges against a former National Security Agency official accused of providing classified information to a journalist. Instead, under a plea deal reached with prosecutors, former NSA official Thomas Drake has agreed to plead guilty in federal court on Friday to a single misdemeanor count of "exceeding authorized use of a computer" -- a minor charge for which he will receive no jail time, a senior administration official told NBC. “This is close...