Columbia subject headings:
Airline passenger security screening--United States.
Airports--Baggage handling--United States.
Airports--Security measures--United States.
Harvard subject headings:
Airline passenger security screening--United States.
Airports--Baggage handling--United States.
Airports--Security measures--United States
Princeton subject headings:
Airline passenger security screening--United States.
Airports--Baggage handling--United States.
Airports--Security measures--United States.