Columbia subject headings:
Terrorism--Moral and ethical aspects.
Torture--Moral and ethical aspects.
War--Moral and ethical aspects.
Harvard subject headings:
Terrorism--Moral and ethical aspects
Torture--Moral and ethical aspects
War--Moral and ethical aspects
Princeton subject headings:
Terrorism--Moral and ethical aspects.
Torture--Moral and ethical aspects.
War--Moral and ethical aspects.