Axios

The Centers for Disease Control and Prevention declared the cyclospora outbreak related to Taylor Farms lettuce over Friday, though the Food and Drug Administration says its investigation remains ongoing.

The big picture: Thousands of people fell ill as the outbreak rapidly surged throughout the country this summer as federal authorities searched for its origin amid a backdrop of overlapping food safety investigations.

Saudi Crown Prince Mohammed bin Salman (MBS) called President Trump twice Thursday, urging him to launch strikes against the Houthis as the Iran-backed group closed in on a vital Red Sea chokepoint, two U.S. officials told Axios.

• Trump declined, and U.S. officials stressed the administration has no plans to intervene directly against the Houthis for now.

Why it matters: Oil prices surged Thursday as the Houthis seized a strategic coastal city in Yemen, pushing them closer to the Bab al-Mandab Strait — a vital artery for global trade and Saudi oil exports.

This week's dire warnings about unchecked artificial intelligence destroying humanity are refocusing attention on how models already are being used in dangerous bioscience experiments — and the lack of safeguards.

Why it matters: There's growing alarm about emerging risks from advances like AI-designed viruses. But it's hard to erect guardrails when there's no ironclad way of even knowing how some AI systems will act.