Columbia subject headings:
Aeronautics, Commercial--Capital investments--United States.
Aeronautics--Law and legislation--United States.
Airports--Law and legislation--United States.
Public investments--United States.
Harvard subject headings:
Aeronautics, Commercial--Capital investments--United States
Aeronautics--Law and legislation--United States
Airports--Law and legislation--United States
Public investments--United States.
Princeton subject headings: