New technology raises concerns about grocery shoppers’ privacy:

You swipe your savings card against a screen mounted on a supermarket shopping cart. As you move around the store, the screen flashes ads for products you usually buy, notes that you haven’t bought toothpaste in six months, and provides recipes and health information.

All the while, your every move – including which aisles you go down and how long you spend in each department – is tracked for marketing purposes via the savings cards, also known as loyalty cards.

Such technology is in the works and privacy advocates – already concerned about the proliferation of cards that monitor customers’ purchases – are outraged. Fresno Bee