Dr. Steven J. Hatfill is shown in this Aug. 11, 2002 photo. Hatfill, the bioterrorism expert under scrutiny in the 2001 anthrax attacks, filed a lawsuit accusing Attorney General John Ashcroft and other government officials of trampling his constitutional rights and using him as a scapegoat for their failure to make an arrest in the case. (AP Photo/Rick Bowmer)