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Season Premiere

Season 2011 Episode 16

About the Episode

In the fall of 2001 envelopes carrying deadly Anthrax were delivered to U.S. Senate offices, network news divisions, and a tabloid newspaper. Five people were killed, many more infected and the nation was terrorized. Now, FRONTLINE takes a hard look at the FBI's investigation of the country's most notorious act of bioterrorism.

Aired: | Expires: | Runtime: 30s

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