An image of 13-year-old Hamza al-Khateeb is surrounded by candles in this photo from a Facebook page in his memory. From hide caption

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Clashes erupted between security forces and students demanding political change at a protest in Algeria's capital, Algiers, on May 2. Small protests in the city are quickly put down by well-equipped riot police. Farouk Batiche/AFP/Getty Images hide caption

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The confluence of the Baker and Chacabuco rivers in the remote Patagonian region of Aysen in Chile, as seen on Jan. 20, 2008. The plan to build five new hydroelectric dams in the region has sparked protests in Chile. Jorge Uzon/AP hide caption

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Cherry blossoms bloom amid tsunami devastation in Kamaishi city, Iwate prefecture, Japan, on April 20. Yasuyoshi Chiba/AFP/Getty Images hide caption

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Kayo Watanabe, who works in life insurance, with her two daughters. They'll soon leave this house, and their father and grandparents, to move farther away from the crisis-stricken nuclear plant. Louisa Lim/NPR hide caption

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Barrio La Victoria Ciudad Delgado in San Salvador, El Salvador, is controlled by the Mara Salvatrucha gang. A gang leader says he sees the group as a social organization — one that provides services, like water, and protects "civilians." Jason Beaubien/NPR hide caption

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Saif al-Adel, shown in a photo released by the FBI on Oct. 10, 2001. Al-Adel spent years detained in Iran, where the U.S. couldn't target him. FBI/Getty Images hide caption

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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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