Columbia subject headings:
Energy consumption--United States.
Middle East--Foreign relations--United States.
National security--United States.
Petroleum industry and trade--Political aspects--United States.
United States--Foreign relations--Middle East.
War on Terrorism, 2001---Economic aspects.
Harvard subject headings:
Energy consumption--United States.
Middle East--Foreign relations--United States.
National security--United States
Petroleum industry and trade--Political aspects--United States
United States--Foreign relations--Middle East.
War on Terrorism, 2001-2009--Economic aspects.
Princeton subject headings:
Energy consumption--United States.
Middle East--Foreign relations--United States.
National security--United States.
Petroleum industry and trade--Political aspects--United States.
United States--Foreign relations--Middle East.
War on Terrorism, 2001-2009--Economic aspects.