Question about the terms “U.S. National” and “U.S. Citizen”?

Question

Why are the people of American Samoa “U.S. Nationals” rather than “U.S. Citizens” like the people of Puerto Rico or the U.S. Virgin Islands?

Answer 1

I think a national is a person born here and a citizen is not

Answer 2

American Samoa is an "unincorporated territory" of the U.S.  Only certain parts of the U.S. Constitution apply.

http://en.wikipedia.org/wiki/American_Sa...

For incorporated & unincorporated territories, see-

http://en.wikipedia.org/wiki/Territories...

Citizens (beloning to incorporated territories) have FULL Constitutional rights.