Columbia subject headings:
Criminal justice personnel--Violence against--United States.
United States. Marshals Service--Officials and employees--Crimes against.
United States. Marshals Service--Officials and employees--Violence against.
Violence in the workplace--United States.
Harvard subject headings:
Judges--Crimes against--United States.
Judges--Violence against--United States.
United States. Marshals Service.
Violence in the workplace--United States.
Princeton subject headings:
Judges--Crimes against--United States.
Judges--Violence against--United States.
United States. Marshals Service
Violence in the workplace--United States.