Plain Thinking Supplement 06 · July 10, 2026

Free supplement

Freenet Roundup and the Fourth Amendment

United States v. Johnson

A supplement on the First Circuit's Freenet Roundup decision: how the tool works, what the court decided, what it left open, and what prosecutors should preserve.

Sample page

Sample first page of Plain Thinking Supplement 06

Full report is open.

View the complete report in your browser, or download a copy for offline review.

What it covers

  • How Freenet's Opennet and Darknet modes differ.
  • What Freenet Roundup records and how it estimates whether a sender originated or relayed a request.
  • The separate search, affidavit, intent, and staleness questions in Johnson, Baxter, and Daigle.
  • What the First Circuit decided and what it left open.
  • The preservation checklist and source record behind the report.

Access

Open the report in your browser, or download a copy for offline review.