Here in the U.S., McDonald’s says its McNuggets are all already sourced from chickens raised without the use of controversial antibiotics. But the continued overuse of antibiotics in overseas farm animals — particularly in some developing nations where the practice is growing — also puts people worldwide at risk for contracting and spreading antibiotic-resistant bacteria. So today, McDonald’s said it is expanding its antibiotic-free program on a global basis — but not right away. [More]