Columbia subject headings:
Harvard subject headings:
Drug control--Latin America
Drug control--United States
Howard Air Force Base (Panama)
Latin America--Relations--United States.
Military base closures--Panama.
United States--Relations--Latin America.
Princeton subject headings:
Drug control--Latin America.
Drug control--United States.
Howard Air Force Base (Panama)
Latin America--Relations--United States.
Military base closures--Panama.
United States--Relations--Latin America.