Columbia subject headings:
Intelligence service--United States.
National security--United States.
State-sponsored terrorism.
Weapons of mass destruction.
Weapons systems--Technological innovations.
Harvard subject headings:
Biological weapons.
Intelligence service--United States.
National security--United States
State-sponsored terrorism.
Princeton subject headings:
Intelligence service--United States.
National security--United States.
State-sponsored terrorism.
Weapons of mass destruction.
Weapons systems--Technological innovations.