They thought they were making routine purchases—the innocent, everyday pickups of charcoal and hummus, bleach and sandwich bags, that keep the modern household running. Regulars at a national grocery chain, these thousands and thousands of shoppers used the store's preferred-customer cards, in the process putting years of their lives on file. Perhaps they expected their records would be used by marketers trying to better target consumers. Instead, says the company's privacy consultant, the data was used by government agents hunting for... More >>>