Whether § 6 of the Subversive Activities Control Act unconstitutionally restricted the Fifth Amendment liberty to travel abroad by denying passports to all notified members of registered Communist organizations.
Holding
Yes. Section 6 was unconstitutional on its face because it swept too broadly and indiscriminately across the constitutionally protected liberty to travel.
Reasoning
The Court began with Kent v. Dulles, which recognized foreign travel as an important aspect of the liberty protected by the Fifth Amendment. In practical operation, passport denial was a severe restraint: existing law made a passport necessary for travel outside the Western Hemisphere and for travel to Cuba. Section 6 therefore effectively barred covered persons from most foreign travel.
Congress plainly had authority to protect national security, and the Court did not treat the right to travel as absolute. But even a legitimate and substantial governmental purpose cannot be pursued through means that unnecessarily invade protected freedoms. The Court applied the principle that legislation affecting fundamental liberties must be narrowly drawn, with its breadth measured against less drastic ways to achieve the same objective.
Section 6 made bare membership in a covered organization the sole basis for the travel prohibition. It applied even to members who did not actually know that their organization was covered or that it pursued the aims attributed to the world Communist movement. By treating knowing and unknowing members alike, the statute created an arbitrary and irrebuttable presumption that every member's foreign travel would threaten national security.
The statute also ignored factors that would bear directly on the asserted security danger: the member's degree of activity, commitment to the organization's unlawful purposes, knowledge, proposed destination, and purpose for travel. Thus, a person could be denied a passport to visit a sick relative, obtain medical care, conduct research, or travel to a country posing no security concern, even though the same person could travel within the Western Hemisphere for harmful purposes.
The Government could not justify the burden by saying that members could regain their ability to travel by leaving the organization. Freedom of association is itself constitutionally protected, so the Government may not dismiss a travel restriction on the premise that a person can exercise the right only by relinquishing protected associational membership.
Less restrictive alternatives were available. The federal loyalty program, for example, treated organizational membership as relevant evidence rather than conclusive proof of disloyalty. Because § 6 rested on only a tenuous connection between membership and dangerous travel-related conduct while omitting plainly relevant individualized considerations, it was not precisely tailored to the security interest Congress invoked.