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The freedom of speech • Grayned v. City of Rockford • Anti-noise ordinance prohibiting a person while on grounds adjacent to a building in which a school is in session from willfully making a noise or diversion that disturbs or tends to disturb the peace or good order of the school session is not unconstitutionally vague or overbroad. The ordinance is not vague, since, with fair warning, it prohibits only actual or imminent, and willful, interference with normal school activity, and is not a broad invitation to discriminatory enforcement.
New York Times Co. v. United States • The United States, which brought these actions to enjoin publication in the New York Times and in the Washington Post of certain classified material, has not met the "heavy burden of showing justification for the enforcement of such a [prior] restraint."
Abrams v. United States • Evidence held sufficient to sustain a conviction of conspiracy to violate the Espionage Act by uttering, etc., circulars intended to provoke and encourage resistance to the United States in the war with Germany, and by inciting and advocating, through such circulars, resort to a general strike of workers in ammunition factories for the purpose of curtailing production of ordnance and munitions essential to the prosecution of the war.