Retested The Original Batch News Today

Correspondent jim miklaszewski. how did this happen to nine different places? >> reporter: thats the big question being asked by both the pentagon and the centers for disease control in atlanta whose investigations, formal investigations have really just started to get underway. now this batch of anthrax was produced in dougway proving ground in utah more than a year ago. it was irradiated and tested. when it was shipped to labs across the country, one in particular in maryland, they discovered ...