This Sunday the New York Times' Bill Keller got dressed down on the paper's letters page, with scores of readers taking the executive editor to task for being evasive in his previous explanation regarding why--and for how long--the Times held back publishing its December 2005, Pulitzer Prize-winning scoop about the National Security Agency's warrantless eavesdropping program under president Bush. A program recently deemed unconstitutional by a federal judge. At the time of...