The New York Times reported this morning that its Pulitzer Prize-winning reporter and author, James Risen, was subpoenaed by a federal grand jury sitting in Alexandria, Virginia, which seeks the reporter’s sources for a chapter of his 2006 book, State of War. The grand jury seems most concerned about information that was in one of the book's chapters, but which had not previously been reported in the Times' earlier reporting of the super-secret NSA warrantless wiretapping program.