A Wal-Mart customer enters a store in Oakland, California. Wal-Mart, the world's largest retailer, said it is probing allegations its managers in Mexico employed a widespread campaign of bribery to ... more 

A Wal-Mart customer enters a store in Oakland, California. Wal-Mart, the world's largest retailer, said it is probing allegations its managers in Mexico employed a widespread campaign of bribery to secure and expand the company's presence in the country less