Columbia subject headings:
Dogs--Training--United States--Evaluation.
Explosives--Detection--United States.
National security--United States.
Police dogs--United States.
Rescue dogs--United States.
Terrorism--United States--Prevention.
Harvard subject headings:
Dogs--Training--United States--Evaluation.
Explosives--Detection--United States.
National security--United States
Police dogs--United States.
Rescue dogs--United States.
Terrorism--United States--Prevention
Princeton subject headings:
Dogs--Training--United States--Evaluation.
Explosives--Detection--United States.
National security--United States.
Police dogs--United States.
Rescue dogs--United States.
Terrorism--United States--Prevention.