More Suspect Anthrax Shipments Identified in Blunder

The Pentagon announced Friday that it has identified five more potentially live anthrax shipments inadvertently shipped to laboratories. Labs which received inactive samples have been instructed to stop working with the materials until further notice. A total of 24 laboratories in 11 states and two foreign countries, Australia and South Korea are believed to have received suspect samples. Defense officials tell NBC News the anthrax spores had been irradiated to kill them in 2008. Experts say it's very difficult to inactivate a large batch of anthrax spores and say it's a problem across U.S. labs. The Centers for Disease Control and Prevention, which is helping investigate the matter, says no member of the public is in danger and people who may have been exposed to the anthrax spores are taking antibiotics just to be safe.