Academic research
Review of the Scientific Approaches Used During the FBI's Investigation
National Academies Press
Where this source supports the record
Each entry separates the article’s editorial relevance note from its exact, section-level claims. A bibliography link without a direct claim is labeled plainly.
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Historic crimes & investigations · 18 September–November 2001Open article references →
The 2001 Anthrax Letter Attacks
Brentwood mail-processing facility and national letter route · United States
Why editors use it hereIndependent review of microbial forensics, genetic association, and evidentiary limits.
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Quick read
Beginning one week after September 11, letters containing Bacillus anthracis spores were mailed to news organizations and United States senators.
Reviewed 26 July 2026 -
Trigger and conditions
Letters postmarked 18 September reached media organizations; photo editor Robert Stevens developed inhalational anthrax and died on 5 October.
Reviewed 26 July 2026 -
Uncertainty
The twenty-two cases and five deaths are established.
Reviewed 26 July 2026 -
Why it matters
The attack turned a national logistics network into an exposure pathway and showed that intended targets are not the only people at risk.
Reviewed 26 July 2026
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Quick read