Walmart’s dominance of the U.S. retail industry is the stuff of legend, and over the past couple of decades, the retailer has had success replicating that growth in the international market. In fact, if Walmart’s international business were a separate company, it would rank as the third largest retailer in the world. But in 2012 we learned that some of that international growth was likely fueled in part by bribery. In April, the New York Times published an exposé on Walmart’s efforts to expand in Mexico, alleging that the firm paid out $24 million to local Mexican officials to obtain building permits across the country. The Justice Department, the SEC and Mexican officials are still investigating the matter, but in the end it could spell huge fines for the world’s biggest retailer, both for infringing securities laws and for violating the Foreign Corrupt Practices Act.