Columbia subject headings:
Competition--United States.
National security--United States.
Student passports--United States.
Students, Foreign--Economic aspects--United States.
Students, Foreign--Recruiting--United States.
Visas--United States.
Harvard subject headings:
Competition--United States
National security--United States
Student passports--United States.
Students, Foreign--Economic aspects--United States.
Students, Foreign--Recruiting--United States.
Visas--United States.
Princeton subject headings:
Competition--United States.
National security--United States.
Student passports--United States.
Students, Foreign--Economic aspects--United States.
Students, Foreign--Recruiting--United States.
Visas--United States.