Bahraini protesters hold up flowers toward riot police near the Pearl Roundabout in February. On March 18, the government demolished the monument, which had become a prominent gathering place for opposition protesters. Hasan Jamali/AP hide caption

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Protesters demand that Syrian President Bashar al-Assad step down, in front of Arab League headquarters in Cairo. Amr Nabil/AP hide caption

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Supporters of cleric Muqtada al-Sadr march in front of two large Iraqi flags with the Arabic words "God is great," in the Sadr City district of Baghdad on Thursday. Tens of thousands of Sadr's followers rallied to demand the U.S. military leave Iraq at the end of the year. Hadi Mizban/AP hide caption

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A Palestinian family waits to cross from the Gaza Strip into Egypt through the Rafah border crossing on Saturday. Bernat Armangue/AP hide caption

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Men throw stones at riot police during clashes in the coastal town of Banias, Syria, on Friday. STR/AFP/Getty Images hide caption

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Smoke billows from the Jabal Mohsen community while a Sunni gunman takes cover behind a wall in the Bab al-Tabbaneh neighborhood during clashes in Tripoli, Lebanon, on July 9, 2008. Ramzi Haidar/AFP/Getty Images hide caption

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President Ali Abdullah Saleh attends an interview with selected media in Sanaa on May 25. Saleh said he would not step down or allow the country to become a "failed state." Mohammed Hamoud/AP hide caption

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