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FILE - In this Nov. 14, 2011 file photo, shopping carts are photographed outside the Wal-Mart store in Mayfield Hts., Ohio. Wal-Mart Stores Inc. has started an internal investigation into whether its overseas operations complied with the U.S. Foreign Corrupt Practices Act in matters including permitting, licensing and inspections. (AP Photo/Amy Sancetta, File)