"(7) a person born outside the geographical limits of the United States and its outlying possessions of parents one of whom is an alien, and the other a citizen of the United States who, prior to the birth of such person, was physically present in the United States or its outlying possessions for a period or periods totaling not less than ten years, at least five of which were after attaining the age of fourteen years: _Provided_, That any periods of honorable service in the Armed Forces of the United States by such citizen parent may be included in computing the physical presence requirements of this paragraph."[1047] By the same act, "persons born in the Canal Zone and Panama after February 26, 1904, one or both of whose parents were at the time of birth of such person citizens of the United States, are declared to be citizens of the United States; as likewise are of certain categories of persons born in Puerto Rico, Alaska, Hawaii, the Virgin Islands and Guam on or after certain stated dates."[1048] WHO ARE ELIGIBLE FOR NATURALIZATION Naturalization is a privilege to be given, qualified, or withheld as Congress may determine, which an alien may claim only upon compliance with the terms which Congress imposes. Earlier the privilege was confined to white persons and persons of African descent, but was extended by the Act of December 17, 1943, to descendants of races indigenous to the Western Hemisphere and Chinese persons or persons of Chinese descent;[1049] and by the Act of June 27, 1952, "the rights of a person to become a naturalized citizen of the United States shall not be denied or abridged because of race or sex or because the person is married."[1050] But, any person "who advocates or teaches or who is a member of or affiliated with any organization that advocates or teaches * * *" opposition to all organized government, or "who advocates or teaches or who is a member of or affiliated with any organization that advocates or teaches the overthrow by force or violence or other unconstitutional means of the Government of the United States" may not be naturalized as a citizen of the United States.[1051] These restrictive provisions are, moreover, "applicable to any applicant for naturalization who at any time within a period of ten years immediately preceding the filing of the petition for naturalization or after such filing and before taking the final oath of citizenship is, or has been found to be within any of the classes enumerated within this section, notwithstanding that at the time the petition is filed he may not be included within such classes."[1052] THE PROCEDURE OF NATURALIZATION