753 Opinion of the Court II Until 1875 alien migration to the United States was unrestricted. The Act of March 3, 1875, 18 Stat. 477, barred convicts and prostitutes. Seven years later Congress passed the first general immigration statute. Act of Aug. 3, 1882, 22 Stat. 214. Other legislation followed. A general revision of the immigration laws was effected by the Act of Mar. 3, 1903, 32 Stat. 1213. Section 2 of that Act made ineligible for admission "anarchists, or persons who believe in or advocate the overthrow by force or violence of the Government of the United States or of all government or of all forms of law." By the Act of Oct. 16, 1918, 40 Stat. 1012, Congress expanded the provisions for the exclusion of subversive aliens. Title II of the Alien Registration Act of 1940, 54 Stat. 671, amended the 1918 Act to bar aliens who, at any time, had advocated or were members of or affiliated with organizations that advocated violent overthrow of the United States Government. In the years that followed, after extensive investigation and numerous reports by congressional committees, see Communist Party v. Subversive Activities Control Board, 367 U. S. 1, 94 n. 37 (1961), Congress passed the Internal Security Act of 1950, 64 Stat. 987. This Act dispensed with the requirement of the 1940 Act of a finding in each case, with respect to members of the Communist Party, that the party did in fact advocate violent overthrow of the Government. These provisions were carried forward into the Immigration and Nationality Act of 1952. We thus have almost continuous attention on the part of Congress since 1875 to the problems of immigration and of excludability of certain defined classes of aliens. The pattern generally has been one of in creasing control with particular attention, for almost 70 years now, first to anarchists and then to those with communist affiliation or views. III It is clear that Mandel personally, as an unadmitted and nonresident alien, had no constitutional right of entry to this country as a nonimmigrant or otherwise. United States ex rel. Turner v. Williams, 194 U. S. 279, 292 (1904); United States ex rel. Knauff v. Shaughnessy, 338 U. S. 537, 542 (1950); Galvan v. Press, 347 U. S. 522, 530-532 (1954); see Harisiades v. Shaughnessy, 342 U. S. 580, 592 (1952). The appellees concede this. Brief for Appellees 33; Tr. of Oral Arg. 28. Indeed, the American appellees assert that "they sue to enforce their rights, individually and as members of the American public, and assert none on the part of the invited alien." Brief for Appellees 14. "Dr. Mandel is in a sense made a plaintiff because he is symbolic of the problem." Tr. of Oral Arg. 22. The case, therefore, comes down to the narrow issue whether the First Amendment confers upon the appellee professors, because they wish to hear, speak, and debate with Mandel in person, the ability to determine that Mandel should be permitted to enter the country or, in other words, to compel the Attorney General to allow Mandel's admission. IV In a variety of contexts this Court has referred to a First Amendment right to "receive information and ideas": "It is now well established that the Constitution protects the right to receive information and ideas. "This freedom [of speech and press] . . . necessarily 753 Opinion of the Court protects the right to receive. . . . Martin v. City of Struthers, 319 U. S. 141, 143 (1943) . . . ." Stanley v. Georgia, 394 U. S. 557, 564 (1969). This was one basis for the decision in Thomas v. Collins, 323 U. S. 516 (1945). The Court there held that speak and the rights of a labor organizer's right to workers "to hear what he had to say," id., at 534, were both abridged by a state law requiring organizers to register before soliciting union membership. In a very different situation, MR. JUSTICE WHITE, speaking for a unanimous Court upholding the FCC's "fairness doctrine" in Red Lion Broadcasting Co. v. FCC, 395 U. S. 367, 386-390 (1969), said: "It is the purpose of the First Amendment to preserve an uninhibited marketplace of ideas in which truth will ultimately prevail . . . . It is the right of the public to receive suitable access to social, political, esthetic, moral, and other ideas and experiences which is crucial here. That right may not constitutionally be abridged either by Congress or by the FCC." Id., at 390. And in Lamont v. Postmaster General, 381 U. S. 301 (1965), the Court held that a statute permitting the Government to hold "communist political propaganda" arriving in the mails from abroad unless the addressee affirmatively requested in writing that it be delivered to him placed an unjustifiable burden on the addressee's First Amendment right. This Court has recognized that this right is "nowhere more vital" than in our schools and universities. Shelton v. Tucker, 364 U. S. 479, 487 (1960); Sweezy v. New Hampshire, 354 U. S. 234, 250 (1957) (plurality opinion); Keyishian v. Board of Regents, 385 U. S. 589, 603 (1967). See Epperson v. Arkansas, 393 U. S. 97 (1968). In the present case, the District Court majority held: "The concern of the First Amendment is not with a non-resident alien's individual and personal interest in entering and being heard, but with the rights of the citizens of the country to have the alien enter and to hear him explain and seek to defend his views; that, as Garrison [v. Louisiana, 379 U. S. 64 (1964)] and Red Lion observe, is of the essence of self-government." 325 F. Supp., at 631. The Government disputes this conclusion on two grounds. First, it argues that exclusion of Mandel involves no restriction on First Amendment rights at all since what is restricted is "only action-the action of the alien in coming into this country." Brief for Appellants 29. Principal reliance is placed on Zemel v. Rusk, 381 U. S. 1 (1965), where the Government's refusal to validate an American passport for travel to Cuba was upheld. The rights asserted there were those of the passport applicant himself. The Court held that his right to travel and his asserted ancillary right to inform himself about Cuba did not outweigh substantial "foreign policy considerations affecting all citizens" that, with the backdrop of the Cuban missile crisis, were characterized as the "weightiest considerations of national security." Id., at 13, 16. The rights asserted here, in some contrast, are those of American academics who have invited Mandel to participate with them in colloquia, debates, and discussion in the United States. In light of the Court's previous decisions concerning the "right to receive information," we cannot realistically say that the problem facing us disappears entirely or is nonexistent because the mode of regulation bears directly on physical movement. In Thomas the registration requirement on its 753 Opinion of the Court face concerned only action. In Lamont, too, the face of the regulation dealt only with the Government's undisputed power to control physical entry of mail into the country. See United States v. Robel, 389 U. S. 258, 263 (1967). The Government also suggests that the First Amendment is inapplicable because appellees have free access to Mandel's ideas through his books and speeches, and because "technological developments," such as tapes or telephone hook-ups, readily supplant his physical presence. This argument overlooks what may be particular qualities inherent in sustained, face-to-face debate, discussion and questioning. While alternative means of access to Mandel's ideas might be a relevant factor were we called upon to balance First Amendment rights against governmental regulatory interests a balance we find unnecessary here in light of the discussion that follows in Part V-we are loath to hold on this record that existence of other alternatives extinguishes altogether any constitutional interest on the part of the appellees in this particular form of access. V Recognition that First Amendment rights are implicated, however, is not dispositive of our inquiry here. In accord with ancient principles of the international law of nation-states, the Court in The Chinese Exclusion Case, 130 U. S. 581, 609 (1889), and in Fong Yue Ting v. United States, 149 U. S. 698 (1893), held broadly, as the Government describes it, Brief for Appellants 20, that the power to exclude aliens is "inherent in sovereignty, necessary for maintaining normal international relations and defending the country against foreign encroachments and dangers a power to be exercised exclusively by the political branches of government . . . ." Since that time, the Court's general reaffirmations of this principle have |