The U.S. Department of Agriculture is planning to track livestock with RFID chips to quickly identify those exposed to mad cow disease and other health threats and remove them from the food chain. There has also been talk of using the chips on chickens in the wake of preparations for a possible bird flu epidemic. Chipping pets to help owners identify them if they’re lost or run away is becoming a common practice. Will chipping cows and birds be next? Will it really make our food supply safer? Read more about it here.