After clashes between protesters and security forces, Cairo's police erected walls to keep demonstrators away from the Interior Ministry. Street artists then painted this wall across Sheik Rihan Street. Mohammed Hossam/AFP/Getty Images hide caption

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Syrian opposition groups gathered in Istanbul, Turkey, on Monday, as the factions attempt to form a more unified front. This Sunday, the opposition factions, including the main Syrian National Council, will be joined by diplomats in a meeting of the "Friends of Syria." Bulent Kilic/AFP/Getty Images hide caption

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Samira Ibrahim, an Egyptian woman who brought the case against an army doctor accused of conducting forced "virginity checks" on female protesters last year, breaks into tears outside a military court in Cairo on March 11 after hearing that the doctor was acquitted. Gianluigi Guercia /AFP/Getty Images hide caption

itoggle caption Gianluigi Guercia /AFP/Getty Images

A Bedouin guide makes his way down from Mount Sinai to the Greek Orthodox monastery of St. Catherine in Egypt's Sinai Peninsula. The Bedouins depend on tourism, but have been kidnapping visitors in recent months in an attempt to pressure Egypt's government. Mike Nelson/EPA/Landov hide caption

itoggle caption Mike Nelson/EPA/Landov