The Anthrax Files Frontline : Season 29 Episode 22
Not Rated PBS 1h 00m int(0)
Aired: October 11th, 2011 @ 9:00 PM EST on PBS
In the fall of 2001 envelopes carrying deadly anthrax were delivered to U.S. Senate offices, network news divisions and a tabloid newspaper. Now, new questions are being raised about the most expensive and complex investigation ever undertaken by the FBI. FRONTLINE, in a co-production with ProPublica and McClatchy Newspapers, takes a hard look at the FBI's investigation of the country's most notorious act of bioterrorism.