Iranian opposition group says it will act when timing's right as U.S. poised to strike

The White House says hundreds of executions scheduled in Iran have been halted and that the killing of protesters has stopped. Plus, the leader of an armed Kurdish Iranian opposition group sat down with CBS News in Iraq, saying it is ready to take on the Iranian regime at the right moment. CBS News' Holly Williams and Charlie D'Agata have the latest details on the situation.