It's tough to keep up-to-date on all the details coming out about Bruce E. Ivins, the man the Justice Department believes is behind the anthrax letters mailed shortly after Sept. 11 that killed five people. They've been quietly building the case against Ivins for nearly seven years, and believe the former researcher at the Army Medical Research Institute of Infectious Diseases, who committed suicide July 29th, acted alone. It's a fascinating case and an incredibly involved investigation, so today we'll catch you up on all those articles you've been meaning to read about it with NPR's David Kestenbaum and Rep. Rush Holt (D-NJ), whose home district is where the deadly envelopes hit the mail. Got questions about the evidence against Ivins, or the man himself? Doubts about the investigation the FBI calls effectively closed, with Ivins' death? Tune in.