The anti-science crusade in the United States extends beyond President Trump's flourishing statements about climate change being a 'con job' and a 'hoax' and claiming links between Tylenol (or paracetamol) and autism. Under the second Trump administration and Secretary of Health and Human Services Robert F. Kennedy, long-standing medical and scientific institutions are being hollowed out and misinformation and disinformation is rife. There are a number of actors who stand to capitalise on this trend, from foreign states like Russia, to big pharma companies and 'wellness' influencers. And experts say it poses an existential threat not just for America, but for the world.  In this episode Geraldine Doogue and Hamish Macdonald speak to Radio National's Science Editor Jonathan Webb and prominent vaccine scientist Dr Peter Hotez (co-author with Michael Mann of Science Under Siege) about the forces at play in the global war on science and Dr. Hotez also reveals what it's like to be personally targeted by RFK Jr, Joe Rogan and Elon Musk.  Recommendations: Geraldine: Good Night, and Good Luck - 2005 film  Hamish: Australian Story - The River (Part 1 and 2) - ABC iView Get in touch: We'd love to hear from you! Email us at global.roaming@abc.net.au Find all the episodes of Global Roaming now via the ABC Listen App or wherever you get your podcasts.