Iranian agents are attacking leaders of the People's Mujahideen Organisation of Iran, or Mujahideen Khalq. This secular organization has long opposed the clerical groups that dominate Iranian politics. Saddam Hussein provided support for the Mujahideen Khalq, and the organization was disarmed by U.S. forces in 2003. But America, and Iraq, have refused Iranian demands to arrest and return several thousand members of Mujahideen Khalq to Iran. So now, Iran is apparently trying to kidnap or kill senior members of Mujahideen Khalq.