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Immunity for security reports

Air Wisconsin Airlines v. Hoeper

Updated Oct 18, 2026

In brief

Air Wisconsin won the immunity issue: the Court overturned Colorado's ruling and found the airline entitled to legal protection from Hoeper's claim.

Where it stands
Decided

Decided 9-0 · January 27, 2014 · Opinion by Justice Scalia

What it’s about
Air Wisconsin faced a defamation claim over a report it made to the Transportation Security Administration about William Hoeper.
Who it affects
Air Wisconsin is entitled to legal protection from Hoeper's defamation claim over the TSA report.

Summary: written with AI from the case record.

Illustration for Air Wisconsin Airlines Corporation v. William L. Hoeper
Conceptual illustration · AI-generated

What it's about

The Supreme Court ruled that the report was protected from liability under the Aviation and Transportation Security Act because its inaccuracies would not have changed a reasonable security officer’s response; it overturned the Colorado Supreme Court’s ruling and sent the case back to the lower court (remanded).

The Aviation and Transportation Security Act supplied the immunity rule at the center of Hoeper's defamation lawsuit over Air Wisconsin's report to the TSA.

Question presented

1. Must a trial court decide whether the Aviation and Transportation Security Act grants immunity to a party before trial? 2. Does the Free Speech Clause of the First Amendment require a court to independently examine the record when reviewing a defamation case?

What the Court decided

Holding

Under the correct material falsity analysis, Air Wisconsin is entitled to immunity as a matter of law. Reversed and remanded.

Result
Reversed

The Court's reasoning

The Court applied a test that asks whether a falsehood could naturally affect how a reasonable TSA officer would respond. It concluded Air Wisconsin was entitled to legal protection under that test.

The vote

  • Joined the judgment
  • Wrote an opinion
Majority · 9joined the Court's opinion
  1. Breyer
  2. Kagan
  3. Thomas
  4. Scaliawrote the opinion
  5. Kennedy
  6. Ginsburg
  7. Sotomayoralso wrote separately
  8. Roberts
  9. Alito
9 justices joined the judgment.

From the opinions

“Having answered the question we granted certiorari to decide, see 570 U. S. ___ (2013), I would stop there and remand the case for further proceedings. Instead, the Court proceeds to “apply the [ATSA] material falsity standard to the facts of this case” in the first instance, ante, at 13, and concludes as a matter of law that Air Wisconsin’s report to the TSA about William Hoeper was not materially false.”

— Justice Antonin Scalia(dissent)

What's next

The case returns to the Colorado Supreme Court for further proceedings under the Supreme Court's ruling.

Documents

1

Docket activity

6
  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Case Briefing

    Oct 18, 2026 · Generated

  • AI analysis generated: Decision Record

    Oct 18, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Oct 18, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Oct 17, 2026 · Court records

Show 1 more
  • Opinion added: Hoeper

    Jan 27, 2014 · Court records

More questions

1
How did the Court define a materially false TSA report?
A falsehood was material if it could naturally influence how a reasonable TSA officer would respond to the report.

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Oct 18, 2026Methodology

Court records and filings

Reporting and analysis