A federal appeals court has ordered a civil rights lawyer convicted in a terrorism case that originated in Minnesota to begin serving her prison sentence. The 2nd U.S. Circuit Court of Appeals in Manhattan today also upheld Lynne Stewart's conviction, which was based in part on illegally aiding her client, Sheik Omar Abdel-Rahman, during a visit with him at the federal prison in Rochester, Minn., in May 2000. She was convicted of smuggling messages between Abdel-Rahman and a terrorist group. Stewart was sentenced to a little more than two years in prison.