sentences:  And that failure to accord him a prerevocation hearing did not violate his Fifth Amendment right to procedural due process because when there is a substantial likelihood of "serious damage" to national security or foreign policy as a result of a passport holder's activities in foreign countries, the Government may take action to ensure that the holder may not exploit the sponsorship of his travels by the United States.The Court found that the right to hold a passport is subordinate to national security and foreign policy considerations, and is subject to reasonable governmental regulation.Denial of Agee's passport was not protected under the First Amendment because unlike "Kent v. Dulles" and "Aptheker v. Secretary of State" involving denials of passports solely on the basis of political beliefs entitled to First Amendment protection, Agee's actions amounted to more than speech and that the national security interests here, as in "Zemel v. Rusk", were sufficiently important to justify revocation.