This week, the Food and Drug Administration proposed a voluntary program to help reduce the use of antibiotics in animals raised for their meat. As the use of these drugs has increased, so has the incidence of drug-resistant bacteria. So the FDA is concerned about the public health impact of the use of these antibiotics. Arun Rath speaks with Maryn McKenna about the plan, and how it might work. McKenna writes for Wired Magazine and is the author of Superbug: The Fatal Menace of MRSA.