Columbia subject headings:
Aeronautics, Commercial--Security measures--United States.
Airline passenger security screening--Technological innovations--United States.
Airports--Baggage handling--Technological innovations--United States.
Airports--Security measures--Technological innovations--United States.
Explosives--Detection--Technological innovations--United States.
United States. Transportation Security Administration--Rules and practice.
Harvard subject headings:
Aeronautics, Commercial--Security measures--United States
Airline passenger security screening--Technological innovations--United States.
Airports--Baggage handling--Technological innovations--United States.
Airports--Security measures--Technological innovations--United States.
Explosives--Detection--Technological innovations--United States.
United States. Transportation Security Administration--Rules and practice.
Princeton subject headings:
Aeronautics, Commercial--Security measures--United States.
Airline passenger security screening--Technological innovations--United States.
Airports--Baggage handling--Technological innovations--United States.
Airports--Security measures--Technological innovations--United States.
Explosives--Detection--Technological innovations--United States.
United States. Transportation Security Administration--Rules and practice.