U.S.

Associated Press
Oakland police are pelted with bottles and beverages as they prepare to clear Frank Ogawa Plaza of May Day protestors Tuesday, May 1, 2012 in Oakland, Calif. Hundreds of activists across the U.S. joined the worldwide May Day protests on Tuesday, with Occupy Wall Street members in several cities leading demonstrations and in some cases clashing with police. (AP Photo/Ben Margot)

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