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Researcher Kept Security Clearance as FBI Closed In

As an FBI investigation increasingly focused on him as a suspect in the 2001 anthrax attacks, Fort Detrick scientist Bruce E. Ivins enjoyed a security clearance that allowed him to work in the facility's most dangerous laboratories, to handle deadly biological agents, and to take part in broad...

By Carrie Johnson, Marilyn W. Thompson and Joby Warrick

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