A Republican-led Senate subcommittee that oversees disaster management is investigating OpenAI’s handling of the Hugging Face breach in July, Axios has learned.

Why it matters: The investigation comes amid rapidly escalating concern on Capitol Hill about the existential dangers posed by AI following public warnings by several Anthropic and OpenAI researchers.

• “As you may know, in the public domain, more AI experts are warning about the existential risks of AI,” Sen. Josh Hawley (R-Mo.) wrote in a letter to OpenAI CEO Sam Altman first obtained by Axios.
• He added: “Just this week, three Anthropic researchers expressed publicly that there is a greater than 10% chance that AI could kill all human beings within the next decade.”

Driving the news: Hawley, the chair of the Senate Homeland Security & Governmental Affairs subcommittee on Disaster Management, wrote that he is launching the probe in response to findings from OpenAI’s recently released internal investigation.

• Hawley described OpenAI’s handling of the cyber test — specifically not taking more drastic action after researchers became aware their agents had gone rogue — as “reckless.”
• He also noted that OpenAI “redacted many important details” about the incident in its report.
• “The American people deserve to know the details of what went on in the Hugging Face incident and other incidents of AI models going rogue,” he wrote.

Catch up quick: The Hugging Face breach marked a turning point in the history of AI, leading OpenAI to slow down the release of its own model and rally the industry to sound the alarm over AI-powered cyberattacks.

• An outside team from METR and Redwood Research conducted an investigation into the incident but it is incomplete and limited in scope.
• OpenAI did not respond to a request for comment.

What’s next: Hawley is demanding answers from Altman by Oct. 1 to 16 questions related to the Hugging Face incident and the steps taken by OpenAI in response to it.

• He is also seeking a wide array of documents about the incident and about OpenAI’s internal policies and procedures more broadly.