FRONTLINE

Season Premiere

Preview: Season 30 Episode 1 | 30s

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: 10/11/11

Rating: NR

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