Iranian opposition supporters attend a protest, as they hold pictures of opposition leader Mir Hossein Mousavi, in Tehran, Iran, Friday, Sept. 18, 2009. Thousands of opposition supporters held protests in competition with government-sponsored mass rallies to mark an annual anti-Israel commemoration, the Quds Day that reflects the Persian nation's sympathy with the Palestinians. (AP Photo/Vahid Salemi)

Photo by: Vahid Salemi

Iranian opposition supporters attend a protest, as they hold pictures of opposition leader Mir Hossein Mousavi, in Tehran, Iran, Friday, Sept. 18, 2009. Thousands of opposition supporters held protests in competition with government-sponsored mass rallies to mark an annual anti-Israel commemoration, the Quds Day that reflects the Persian nation's sympathy with the Palestinians. (AP Photo/Vahid Salemi)