Why has RFK Jr pulled $500m of mRNA vaccine funding?

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 GET IN TOUCH: * Join our online community: https://discord.gg/qSrxqNcmRB * Send us a message or voice note via WhatsApp to +44 330 123 9480 * Email Americast@bbc.co.uk * Or use #Americast 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. If you want to be notified every time we publish a new episode, please subscribe to us on BBC Sounds by hitting the subscribe button on the app. You can now listen to Americast on a smart speaker. If you want to listen, just say "Ask BBC Sounds to play Americast”. It works on most smart speakers. US Election Unspun: Sign up for Anthony’s BBC newsletter: https://www.bbc.co.uk/news/world-us-canada-68093155 Americast is part of the BBC News Podcasts family of podcasts. The team that makes Americast also makes lots of other podcasts, including Newscast and Ukrainecast. If you enjoy Americast (and if you're reading this then you hopefully do), then we think that you will enjoy some of our other pods too. See links below. Newscast: https://www.bbc.co.uk/sounds/series/p05299nl Ukrainecast: https://www.bbc.co.uk/sounds/brand/p0bqztzm Radical: BBC Sounds - Radical with Amol Rajan - Available Episodes