IC Oversight & Authorities — 2026-04-10

Appeals Court Refuses to Block Pentagon Blacklisting of Anthropic Over AI Weapons and Surveillance Guardrails

A DC Circuit panel rejected Anthropic's emergency request to stay the Pentagon's supply-chain risk designation, ruling the balance of harms favored national security during active conflict. The Pentagon imposed the label after Anthropic refused to drop contractual bars on autonomous weapons and domestic surveillance. A San Francisco federal court reached the opposite conclusion, granting Anthropic a preliminary injunction. The DC court ordered expedited proceedings. Senator Warren opened an investigation into whether the designation was retaliation.

Analysis
The split between DC and San Francisco courts ensures this dispute will escalate. The DC Circuit's framing of the balance as financial harm to one company versus national security during active conflict gives the administration wide latitude, but the SF injunction means Anthropic models remain in use on some defense networks.
3 sources
  1. Anthropic loses appeals court bid to temporarily block Pentagon blacklisting - CNBC
  2. Appeals court rebuffs Anthropic in latest round of its AI battle with the Trump administration - Federal News Network
  3. Court Backs Pentagon Anthropic Ban - But the Fight Continues - GovInfoSecurity

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