In this issue: COMMENT "Who Are the Rebels?", by Jon Lee Anderson: A report from Libya's front lines. THE TALK OF THE TOWN "Good Morning, Baghdad", by Lillian Ross: Robin Williams brings the Iraq war to Broadway. ONLINE CHRONICLES "Net Impact", by Julia Ioffe: A crusade against Russian corruption. LETTER FROM TUNIS "The Casbah Coalition", by Steve Coll: Tunisia's second revolution. BOOKS br>"Get Smart", by Adam Gopnik: How smart are computers really? THE CURRENT CINEMA "Time Bomb", by Anthony Lane: Reviews of In a Better World and Super.