Some members of Congress have expressed concerns that stores will monitor customers and raise prices. Business experts say the technology has not raised customers’ grocery bills. Supermarkets and Grocery Stores, Kroger Company, Walmart Stores Inc, Prices (Fares, Fees and Rates), Facial Recognition Software, Privacy, Supply Chain, Wegmans, Whole Foods Market Inc, Amazon.com Inc, Shopping and Retail, workrelated Some members of Congress have expressed concerns that stores will monitor customers and raise prices. Business experts say the technology has not raised customers’ grocery bills. NYT > Business