- What We Do
- What we defend
- Have your rights been violated?
  If you face retaliation over protected speech, reach out to FIRE to learn more about how we can protect your rights.
  Submit a Case
- Make a difference
- Subscribe to FIRE Updates
  Stay up to date with FIRE's biggest cases and battles for free expression.
  Subscribe
- Take Action
  Across the nation, free speech rights are under attack. Join us in defending this essential quality of liberty. Make your voice heard and join a campaign.
  Protect Free Speech
- Resources
- College Free Speech Rankings
  This year FIRE and College Pulse surveyed nearly 63,000 students and ranked 261 U.S. colleges and universities. We use real student experiences, university policies, and speech controversies to determine the free speech rankings.
  Explore Rankings
- National Speech Index
  The National Speech Index tracks free speech sentiments in America. It is a quarterly survey component of America's Political Pulse from the Polarization Research Lab.
  Learn More
Colleges
News
Cases
Submit a Case
Newsletter

UNITED STATES v. O'BRIEN

Supreme Court Cases

391 U.S. 367 (1968)