Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of demonstrators hang an effigy of U.S. President George W. Bush during a rally at Firdos Square in Baghdad November 21, 2008. The followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of demonstrators hang an effigy of U.S. President George W. Bush during a rally at Firdos Square in Baghdad November 21, 2008. The followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of demonstrators hang an effigy of U.S. President George W. Bush during a rally at Firdos Square in Baghdad November 21, 2008. The followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of demonstrators hang an effigy of U.S. President George W. Bush during a rally at Firdos square in Baghdad November 21, 2008. The followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011. Firdos square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011 in Firdos Square in Baghdad on November 21, 2008. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of demonstrators hang an effigy of U.S. President George W. Bush during a rally at Firdos Square in Baghdad November 21, 2008. The followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo

Thousands of demonstrators hang an effigy of U.S. President George W. Bush during a rally at Firdos Square in Baghdad November 21, 2008. The followers of Shiite cleric Moqtada al-Sadr marched against a pact letting U.S. forces stay in Iraq until 2011. Firdos Square is where U.S. troops tore down a statue of Saddam Hussein after the invasion in 2003. (UPI Photo/Ali Jasim) | License Photo