NBC's Meredith Vieira talked with Dr. Russell Burns who worked with Bruce Ivins. Ivins died last week of an apparent suicide and was a suspect in the 2001 anthrax attacks. Burns said that he doubts that Ivins could have hid the anthrax attacks from his colleagues.


NBC's Pete Williams reported that the government is set to close the anthrax investigation.

This video is from NBC's Today Show, broadcast August 4, 2008.


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