Immunity for security reports
Air Wisconsin Airlines v. Hoeper
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.

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
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.”
What's next
The case returns to the Colorado Supreme Court for further proceedings under the Supreme Court's ruling.
Documents
Opinions
Docket activity
New analysis added
AI analysis generated: Case Briefing
AI analysis generated: Decision Record
Case data updated: summary, question_presented, generation_metadata
Case data updated: question_presented, extraction_metadata
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Opinion added: Hoeper
More questions
- 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.