Renegade rancher Cliven Bundy is refusing to enter a plea in federal court to criminal charges, that he led an armed standoff against federal agents two years ago.  A federal magistrate judge entered a not guilty plea Thursday on Bundy’s behalf and scheduled a detention hearing March 17. Bundy refuses to acknowledge federal authority.  Bundy faces 16 charges including conspiracy, assault and threatening a federal officer, obstruction and firearms offenses. Convictions could get him life in prison.