We already know that 4-in-5 popular restaurant chains have put little to no thought into dealing with the overuse of antibiotics in the farm animals that provide the beef, chicken, and pork for their foods. And though chicken titans like Perdue and Tyson are nudging the poultry industry toward fewer antibiotics, cattle farmers are apparently more reluctant to head the drug-free route because they are making big profits on drugged-up cows. [More]