Same-store sales for Wal-Mart's U.S. locations in the 13 weeks ending April 26 will be little changed from a year earlier, Bill Simon, chief executive officer of Wal-Mart U.S., said on a Feb. 21 teleconference to discuss fourth-quarter results with analysts and investors. The company, which spent $157 million in the year ended Jan. 31 linked to its investigations of possible bribery in its international operations, said last month that it expects to continue incurring costs related to the probes. The U.S. Department of Justice and the Securities and Exchange Commission, as well as federal and local government agencies in Mexico, are also examining bribery allegations. While Wal-Mart doesn't expect those matters to have a material adverse effect on its business, the company said it can't reasonably estimate the potential loss.