Bob Coen & Eric Nadler Dead Silence - Fear and Terror on the Anthrax Trail (Counterpoint Press, 2009) ISBN 1-58243-509-X Leonard A. Cole The Anthrax Letters, A Medical Detective Story (Joseph Henry Press, 2003) ISBN 0-309-08881-X [1] Leonard A. Cole The Anthrax Letters, A Bioterrorism Expert Investi...