US Health Secretary Robert F Kennedy Jr has cancelled 22 projects - worth $500m (£376m) in funding – for tackling infections such as Covid and flu. During the pandemic, mRNA vaccines were heralded as a medical marvel that saved lives, but RFK Jr says he wants to shift the money to "safer, broader vaccine platforms that remain effective even as viruses mutate". Justin and Marianna look at the broader reasons behind the decision, what the science says, and the possible ramifications. Also today, we discuss stories away from the main American headlines: why former US president Bill Clinton, and his wife Hillary Clinton, have been summoned to give evidence about the convicted sex offender, Jeffrey Epstein. Plus, Trump’s interview on why he sacked the head of America’s main agency which is responsible for issuing job data, and what that tells us about the US economy. HOSTS: * Justin Webb, Radio 4 presenter * Marianna Spring, Social Media Investigations Correspondent

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This episode was made by Purvee Pattni with Alix Pickles and Grace Reeve. The technical producer was Dafydd Evans. The series producer is Purvee Pattni. The senior news editor is Sam Bonham.

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