It now appears a dangerous type of staph infection is probably killing more Americans each year than AIDS. It's resistant to standard antibiotics, and the government reports that this superbug now sickens more than 90,000 Americans annually. The drug-resistant germ goes by the nickname MRSA, short for methicillin-resistant staphylococcus aureus. The bacteria can be carried by healthy people, living on skin or in noses, but can be deadly if it spreads inside the body. How concerned should you be? Larry Mantle talks with Los Angeles County epidemiologist Dr. Elizabeth Bancroft and UCLA-Olive View ER physician Dr. Gregory Moran.