AP® United States Government and Politics · Unit 3 · Topic 3.4
Prior Restraint and New York Times Co. v. United States
Prior restraint is government censorship that blocks speech before it happens, and in New York Times Co. v. United States (1971) the Supreme Court ruled the government could not stop newspapers from publishing the Pentagon Papers in advance.
Prior restraint works like a gate the government tries to shut before anything gets through. Instead of punishing someone after they speak or publish, the government asks a court to block the material from ever reaching the public. In 1971 the Nixon administration tried exactly this: it sought a court order stopping the New York Times and Washington Post from publishing the Pentagon Papers, a leaked classified history of U.S. decision-making in Vietnam. The government argued publication would harm national security.
The Supreme Court refused to grant the order. Courts treat prior restraint as the most dangerous form of censorship because it stops speech before anyone can judge it, so there is a heavy presumption against it. That phrase means the burden sits almost entirely on the government, which must show something close to certain, severe, and immediate harm to justify blocking publication in advance. In New York Times Co. v. United States, the government could not clear that bar, so the papers ran the story.
The ruling does not mean publishers walk away risk-free. It closed off one specific tool, advance censorship, without promising immunity from lawsuits, criminal charges, or other legal consequences that might follow after publication under separate laws like those covering classified leaks. This connects to the free speech line drawn in Schenck v. United States: both cases ask how much danger speech must pose before government can act against it, but prior restraint cases demand an even higher showing because the censorship happens before the public ever hears the message.
Key terms
- Prior restraint
- Government action that blocks speech or publication before it happens, rather than punishing it afterward.
- Heavy presumption against prior restraint
- The legal standard that courts assume prior restraint is unconstitutional unless the government proves an extremely high level of harm.
- Pentagon Papers
- Leaked classified documents detailing U.S. government decision-making during the Vietnam War.
- New York Times Co. v. United States
- The 1971 Supreme Court case ruling that the government could not block newspapers from publishing the Pentagon Papers.
Watch it explained
- How it worksWalk me through prior restraint as a gate the government tries to close before publication.
- How it worksHow does the heavy presumption against prior restraint stack the burden against the government?
- Common mistakeWhy isn't the Pentagon Papers ruling a promise that publishing secrets carries no consequences?
- Ties togetherHow does press freedom in this case connect to the free speech line drawn in Schenck?
Check yourself
End of topic.