408 U.S. 753 (1972) Cited 792 times 5 Legal Analyses
Holding that students had a "constitutional interest" in hearing a Marxist theoretician speak at academic conferences and discussions in the United States
Rejecting the contention of unadmitted Haitian aliens seeking parole "that the Protocol invests them with a liberty right protectable by due process or other constitutional protections," and noting "the intent of Congress in acceding to the Protocol to leave existing immigration procedures intact"
Holding that alien paroled and released on bond pending exclusion proceedings was "still, in theory of law, ‘on the threshold of initial entry.’ " (quoting Shaughnessy v. United States ex rel. Mezei , 345 U.S. 206, 212, 73 S.Ct. 625, 97 L.Ed. 956 (1953) )