Rosenberg
BBC's Tim Franks, 19 Dec 2001: I'm told the FBI is now centring its investigations on just four or five laboratories that received anthrax from the Dugway Proving Ground in Utah.
The first person to push the theory that the terrorist is a government-related insider is the biological weapons expert, Professor Barbara Hatch Rosenberg.
Atlantic: Rosenberg .. (who) had once served as a low-level bioweapons adviser to President Clinton .. (was) a passionate crusader against the use of bioweapons. (S)he was .. convinced that an American scientist was to blame for the anthrax attacks.
Deseret News, Apr 22, 2002: (A) molecular biologist, (she) began the scientific sleuthing in Feburary (sic) when she posted an article on the Web site of the Federation of American Scientists, www.fas.org/bwc, (dead-link, unfortunately)
Rosenberg estimates that perhaps fewer than 40 people could be suspects.
She believes that the perpetrator is one of her own: a disgruntled American scientist.
Prof Rosenberg: He must be angry at some biodefense agency. He is driven to demonstrate, in a spectacular way, his capabilities and the government's inability to respond.
He is cocksure that he can get away with it. Does he know something that he believes to be sufficiently damaging to the United States to make him untouchable by the FBI?
BBC/Franks: The weaponised anthrax is made by a highly secret process belonging to the United States, and the material seems to fit that recipe. Their best lead at present is the contractor that worked for the CIA.