Stat: At least 2 million Americans get antibiotic-resistant infections each year. Story: Nearly a century after Alexander Fleming's discovery of penicillin, bacteria continue to develop the ability to defeat antibiotics. Doctors worldwide are concerned about the spread of superbugs that are resistant to all antibiotics. Host Dan LeDuc visits Fleming's London lab for some history and talks with Pew's Allan Coukell about current efforts to reduce unnecessary use of these drugs and encourage development of new ones.