Columbia subject headings:
Emigration and immigration law--European Union countries.
Human rights--European Union countries.
Noncitizens--European Union countries.
Terrorism--European Union countries--Prevention.
Terrorism--European Union countries.
Harvard subject headings:
Emigration and immigration law--European Union countries.
Human rights--European Union countries
National security--European Union countries
Noncitizens--European Union countries
Terrorism--European Union countries--Prevention.
Terrorism--European Union countries.
Princeton subject headings:
Emigration and immigration law--European Union countries.
Human rights--European Union countries.
Noncitizens--European Union countries.
Terrorism--European Union countries--Prevention.
Terrorism--European Union countries.