Columbia subject headings:
Harvard subject headings:
Beirut (Lebanon)--Foreign relations--United States.
Intelligence service--United States.
Saudi Arabia--Foreign relations--United States
Terrorism--Prevention
United States--Foreign relations--Lebanon--Beirut.
United States--Foreign relations--Saudi Arabia.
Princeton subject headings:
Intelligence service--United States.
Lebanon--Foreign relations--United States.
Saudi Arabia--Foreign relations--United States.
Terrorism--Prevention.
United States--Foreign relations--Lebanon.
United States--Foreign relations--Saudi Arabia.