Amazon to accept food stamps, taking on Walmart

(CBS News/MoneyWatch) -- The world of food stamps is about to go high-tech, and it may turn the grocery industry on its head.The U.S. Department of Agriculture is testing a pilot program this summer that will allow seven online grocery stores to accept food stamps, including online retailing giant Amazon.com. The two-year program will test online ordering and payment, with the USDA noting that online food-stamp purchases need “a higher level of security” because of the risk of fraud.