topic: right to travel
Kent v. Dulles 357 U.S. 116 (1958)
Aptheker v. Secretary of State 378 U.S. 500 (1964)
Zemel v. Rusk 381 U.S. 1 (1965)
United States v. Guest 383 U.S. 745 (1966)
Shapiro v. Thompson 394 U.S. 618 (1969)
Oregon v. Mitchell 400 U.S. 112 (1970)
Graham v. Department of Pub. Welfare 403 U.S. 365 (1971)