As a scientist in the field of biological warfare …
– Steven Hatfill

Steven Jay Hatfill (born October 24, 1953) is an American physician, pathologist and biological weapons expert. He became the subject of extensive media coverage beginning in mid-2002, when he was a suspect in the 2001 anthrax attacks. His home was repeatedly raided by the FBI, his phone was tapped, and he was extensively surveilled for more than two years; he was also terminated from his job at Science Applications International Corporation (SAIC). At a news conference in August 2002, Hatfill denied that he had anything to do with the anthrax letters and said irresponsible news media coverage based on government leaks' had destroyed his reputation. He filed a lawsuit in 2003, accusing the FBI agents and Justice Department officials who led the criminal investigation of leaking information about him to the press in violation of the Privacy Act.