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.
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This April 19, 2007 file photo shows Miami Heat center Shaquille O'Neal talking to the news media following a team basketball practice in Miami. O'Neal says on Twitter that he's "about to retire."
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.