Security forces close the city of Fallujah during a protest in Fallujah, 40 miles (65 kilometers) west of Baghdad, Iraq, Friday, Feb. 1, 2013. Tens of thousands of Sunni protesters blocked a major highway in western Iraq on Friday, as an al-Qaida-affiliated group called on Sunnis to take up arms against the Shiite-led government. (AP Photo/ Khalid Mohammed)

Associated Press
Security forces close the city of Fallujah during a protest in Fallujah, 40 miles (65 kilometers) west of Baghdad, Iraq, Friday, Feb. 1, 2013. Tens of thousands of Sunni protesters blocked a major highway in western Iraq on Friday, as an al-Qaida-affiliated group called on Sunnis to take up arms against the Shiite-led government. (AP Photo/ Khalid Mohammed)
Security forces close the city of Fallujah during a protest in Fallujah, 40 miles (65 kilometers) west of Baghdad, Iraq, Friday, Feb. 1, 2013. Tens of thousands of Sunni protesters blocked a major highway in western Iraq on Friday, as an al-Qaida-affiliated group called on Sunnis to take up arms against the Shiite-led government. (AP Photo/ Khalid Mohammed)
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