RadCasts

US Secretary of Defense Pete Hegseth has said an American submarine sank an Iranian warship in the Indian Ocean.

Washington says it's the first time since the Second World War it's used a torpedo to sink an enemy vessel.

Also on the programme: we gauge the scale of the attacks inside Iran by speaking to a resident in Tehran and verifying video footage; and a look at a new AI model, trained on the DNA of over 100,000 species, that is capable of designing new genomes.

(Photo: US Defence Secretary Pete Hegseth speaks during a press briefing at the Pentagon on 2 March. Credit: EPA/Shutterstock)

As the US and Israeli war against Iran enters its sixth day, a bipartisan resolution in the US Senate aimed at limiting President Trump’s war powers has failed. Senators voted 47 to 53 to prevent the measure from advancing, dealing a blow to Democrats’ efforts to stymie the conflict in the Middle East. Meanwhile, US and Israeli strikes across Iran continue, with the capital, Tehran, bearing the brunt of the offensive. Also: Israel launches fresh attacks on the Lebanese capital, Beirut, warning residents to evacuate their homes; a suicide case in the US highlights the risks of AI chatbots interacting with people dealing with mental health issues; clergy from a conservative group of the Anglican Church seek to elect a rival to the first female Archbishop of Canterbury; how businesses are responding to the popularity of weight-loss drugs; and why chimpanzees are fascinated with crystals.

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