Columbia subject headings:
Terrorism--Congresses.
Terrorism--Government policy--Congresses.
Terrorism--Prevention--Congresses.
Harvard subject headings:
Terrorism--Congresses
Terrorism--Government policy--Congresses.
Terrorism--Prevention--Congresses
Princeton subject headings:
Terrorism--Congresses.
Terrorism--Government policy--Congresses.
Terrorism--Prevention--Congresses.