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In this Sept. 28, 2010 photo, a U.S. Customs and Border Patrol agent drives along the international border fence near Nogales, Ariz. The Supreme Court agreed Monday, Dec. 12, 2011 to rule on Arizona's controversial law targeting illegal immigrants. The justices said they will review a federal appeals court ruling that blocked several tough provisions in the Arizona law. One of those requires that police, while enforcing other laws, question a person's immigration status if officers suspect he is in the country illegally. (AP Photo/Matt York)