Columbia subject headings:
Intelligence service--United States--Methodology.
Interagency coordination--United States.
National security--United States.
Open source intelligence--United States--Evaluation.
Harvard subject headings:
Intelligence service--United States--Methodology.
Interagency coordination--United States
National security--United States
Open source intelligence--United States--Evaluation.
Princeton subject headings:
Intelligence service--United States--Methodology.
Interagency coordination--United States.
National security--United States.
Open source intelligence--United States--Evaluation.