Vietnam Era: The Peak of First Amendment Protection

The decade from 1965 to 1975 produced more landmark First Amendment doctrine than any comparable period in American constitutional history. Vietnam-era protest tested the boundaries of symbolic speech, student speech rights, and press freedom — and the Supreme Court, despite its cautious record in earlier decades, largely vindicated the protesters and established standards that have governed free speech law ever since.

United States v. O'Brien (1968): On March 31, 1966, David Paul O'Brien burned his draft card on the steps of a South Boston courthouse and was immediately arrested. Congress had amended the Universal Military Training and Service Act just months earlier to add a criminal penalty for destroying draft cards — a transparent attempt to suppress antiwar protest through a facially neutral law. The Supreme Court upheld O'Brien's conviction 7-1. Chief Justice Warren's opinion established the O'Brien test for restrictions on expressive conduct: the government may regulate symbolic speech if the regulation is within its constitutional power, serves an important government interest unrelated to suppressing speech, and restricts expression no more than necessary. The test gave government substantial latitude to restrict protest it could plausibly claim to regulate for other reasons — but it established that courts would scrutinize the government's actual purpose.

Tinker v. Des Moines (1969): The same year produced the Warren Court's most speech-protective student rights decision. Three Des Moines students were suspended for wearing black armbands to school to protest the Vietnam War. Justice Fortas's majority opinion held that students do not "shed their constitutional rights at the schoolhouse gate" — that school authorities could restrict speech only upon a substantial, concrete showing of disruption, not merely discomfort or fear of controversy. Tinker remained the high-water mark of student speech protection for decades. The image of teenagers vindicating First Amendment rights against school officials captured something essential about the era's democratic energy.

Brandenburg v. Ohio (1969): Though technically a Ku Klux Klan case rather than an antiwar case, Brandenburg established the constitutional floor that protected Vietnam-era antiwar speech. A KKK leader had been convicted under Ohio's criminal syndicalism law for advocating illegal activity at a rally. The Supreme Court's per curiam opinion established the modern rule: the government cannot punish advocacy of illegal action unless it is directed to producing imminent lawless action and is likely to do so. This standard — far more protective than Schenck's "clear and present danger" or Dennis's deference — made prosecution of antiwar speakers for their rhetoric essentially impossible and effectively repudiated a half-century of speech suppression doctrine.

Cohen v. California (1971): Paul Robert Cohen was arrested for wearing a jacket bearing the words "Fuck the Draft" in a Los Angeles courthouse corridor. Justice Harlan's majority opinion reversed the conviction in one of the most philosophically rich free speech decisions ever written. The government cannot sanitize public discourse by banning vulgar or offensive language; one person's vulgarity is another's lyric; and the emotive as well as cognitive dimensions of speech deserve constitutional protection. Cohen established that government cannot require speakers to express themselves only in polite or approved terms — a principle that would later anchor cases about offensive symbols and hate speech.

New York Times Co. v. United States (1971): The Pentagon Papers case defined the modern law of prior restraints on the press. Daniel Ellsberg, a RAND Corporation analyst, leaked a classified Defense Department history of Vietnam War decision-making to the New York Times and Washington Post. The papers revealed systematic government deception about the war's progress. The Nixon administration sought injunctions to prevent publication. In a 6-3 decision issued just 15 days after the government's first filing, the Supreme Court lifted the injunctions — with nine justices writing nine separate opinions but agreeing on the core principle: the government bears an extremely heavy burden to justify any prior restraint on the press, and the vague national security claims advanced here did not meet it.

COINTELPRO: The FBI's Counter Intelligence Program, active from 1956 to 1971, conducted covert operations against civil rights, antiwar, and left-wing organizations that went far beyond surveillance into active disruption — forged letters, planted informants, false tips to employers, coordination with local police for harassment arrests. COINTELPRO operated entirely outside judicial authorization and targeted speakers specifically because of their political views. When its existence was revealed through the 1971 theft of FBI files in Media, Pennsylvania, it produced congressional investigations, the Church Committee reforms, and new restrictions on domestic intelligence. The program demonstrated that formal First Amendment protection could be neutralized through secret government harassment operating below any constitutional threshold.

Legacy: The Vietnam era's doctrinal legacy is the most durable in American free speech law. Brandenburg, Tinker, Cohen, and the Pentagon Papers remain controlling precedents. Their common thread — that the government cannot suppress political speech because it is offensive, provocative, or critical of government policy — reflects a constitutional commitment that the courts in the WWI and McCarthy eras had repeatedly failed to honor. The era demonstrated that constitutional doctrine can change when the political and cultural conditions press for it.