This post concludes Chapter 3 of Anthrax to Zodiac with more detail on the government's case against Dr. Bruce Ivins.

Ultimately, after Dr. Ivins's death, the FBI declared that they had gotten their man and promptly closed the case despite the fact that Dr. Ivins died an innocent man, having never been charged, let alone convicted, of anything. Over twenty years later, we are still left asking, "Who mailed the anthrax letters?"

We conclude wIth my comments, some tips for using the mail safely, a quiz to test your knowledge, some snarky humor, and a list of references and cool sites for further reading.

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