Constitutional freedom As early as the
Articles of Confederation the Congress recognized freedom of movement (Article 4), though the right was thought to be so fundamental during the drafting of the
Constitution as to not need explicit enumeration. The U.S. Supreme Court in
Crandall v. Nevada, declared that freedom of movement is a fundamental right and therefore a
state cannot inhibit people from leaving the state by taxing them. In
United States v. Wheeler, 254 U.S. 281 (1920), the Supreme Court reiterated its position that the Constitution did not grant the federal government the power to protect freedom of movement. However,
Wheeler had a significant impact in other ways. For many years, the roots of the Constitution's "privileges and immunities" clause had only vaguely been determined. In 1823, the circuit court in
Corfield had provided a list of the rights (some fundamental, some not) which the clause could cover. The
Wheeler court dramatically changed this. It was the first to locate the right to travel in the
Privileges and Immunities Clause, providing the right with a specific guarantee of constitutional protection. By reasoning that the clause derived from Article IV of the Articles of Confederation, the decision suggested a narrower set of rights than those enumerated in
Corfield, but also more clearly defined those rights as absolutely fundamental. The Supreme Court began rejecting ''Wheeler's
reasoning within a few years. Finally, in United States v. Guest'', 383 U.S. 745 (1966), the Supreme Court overruled Chief Justice White's conclusion that the federal government could protect the right to travel only against state infringement. The Supreme Court has specifically ruled that
Crandall does not imply a right to use any particular
mode of travel, such as driving an automobile. In
Hendrick v. Maryland (1915), the appellant asked the court to void Maryland's motor vehicle statute as a violation of the freedom of movement. The court found "no solid foundation" for the appellant's argument and unanimously held that "in the absence of national legislation covering the subject, a state may rightfully prescribe uniform regulations necessary for public safety and order in respect to the operation upon its highways of all motor vehicles — those moving in
interstate commerce as well as others." The U.S. Supreme Court also dealt with the right to travel in the case of
Saenz v. Roe, 526 U.S. 489 (1999). In that case, Justice
John Paul Stevens, writing for the majority, held that the
United States Constitution protected three separate aspects of the right to travel among the states: (1) the right to enter one state and leave another (an inherent right with historical support from the Articles of Confederation), (2) the right to be treated as a welcome visitor rather than a hostile stranger (protected by the "Privileges and Immunities" clause in
Article IV, § 2), and (3) (for those who become permanent residents of a state) the right to be treated equally to native-born citizens (this is protected by the
14th Amendment's Privileges or Immunities Clause; citing the majority opinion in the
Slaughter-House Cases, Justice Stevens said, "the Privileges or Immunities Clause of the Fourteenth Amendment ... has always been common ground that this Clause protects the third component of the right to travel.").
Mann Act The 1910
Mann Act (
White-Slave Traffic Act) among other things banned the
interstate transport of females for otherwise undefined "immoral purposes", which were taken to include consensual extramarital sex. This act was used, in addition to less controversial cases, to allow federal prosecution of unmarried couples who had for some reason come to the attention of the authorities; interracial couples (e.g. boxer
Jack Johnson) and people with left-wing views (e.g.
Charlie Chaplin) were prosecuted. The Act has since been amended to be gender-neutral and now applies only to sexual activity which is separately illegal (such as prostitution and sex with a minor).
Implications The court's establishment of a strong constitutional right to freedom of movement has had far-reaching effects. For example, the Supreme Court overturned state prohibitions on welfare payments to individuals who had not resided within the jurisdiction for at least one year as an impermissible burden on the right to travel in
Shapiro v. Thompson, 394 U.S. 618 (1969). The court also struck down one-year residency requirements for voting in state elections in
Dunn v. Blumstein, 405 U.S. 330 (1972); one-year waiting periods before receiving state-provided medical care in
Memorial Hospital v. Maricopa County, 415 U.S. 250 (1974); and civil service preferences for state veterans in
Attorney Gen. of New York v. Soto-Lopez, 476 U.S. 898 (1986). However, it upheld higher fishing and hunting license fees for out-of-state residents in
Baldwin v. Fish and Game Commission of Montana, 436 U.S. 371 (1978). Current US Code addresses air travel specifically. In , "Sovereignty and use of airspace", the Code specifies that "A citizen of the United States has a public right of transit through the navigable airspace." A strong right to freedom of movement may yet have even farther-reaching implications. The Supreme Court has acknowledged that freedom of movement is closely related to
freedom of association and to
freedom of expression. Strong constitutional protection for the right to travel may have significant implications for state attempts to limit
abortion rights, ban or refuse to recognize
same-sex marriages, and enact anti-crime or
consumer protection laws. It may even undermine current court-fashioned concepts of
federalism.
Free speech zones A related issue deals with
free speech zones designated during political protests. Although such zones were in use by the 1960s and 1970 due to the
Vietnam-era protests, they were not widely reported in the media. However, the controversy over their use resurfaced during the 2001-2009
Bush presidency. In essence, Free Speech Zones prevent a person from having complete mobility as a consequence of their exercising their right to
speak freely. Courts have accepted
time, place, and manner restrictions on free speech in the United States, but such restrictions must be narrowly tailored, and free speech zones have been the subject of lawsuits. ==International travel==