The Global Story Are conspiracy theories America’s biggest export?
Jan 2, 2026
Marianna Spring, the BBC's Social Media Investigations Correspondent, sheds light on the dark influence of misinformation. She shares the tragic story of Kate Shemirani, a British mother radicalized by American conspiracy theories, leading to devastating outcomes for her family. The discussion highlights how distrust in science, fueled by US anti-vaccine sentiments, has serious consequences abroad. Spring connects the dots between US conspiracy narratives and their global spread, emphasizing the alarming impact on public health.
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Reporter Meets Conspiracy Influencer In Person
- Marianna Spring met Kate Shemirani at an anti-lockdown protest and later at her home, where Shemarani presented a veneer of normal family life.
- Behind the scenes, two of her children had already distanced themselves because of her misinformation activism.
Children Raised On US Conspiracy Media
- Sebastian and Gabriel recall childhoods steeped in conspiracy content like David Icke and Alex Jones that their father introduced after 9/11.
- Those early exposures included fantastical claims (lizard people) and false narratives about real tragedies like Sandy Hook.
Cancer Journey Led To Alternative Medicine Platform
- After a 2012 breast cancer diagnosis, Kate Shemarani rejected conventional follow-up treatments and embraced alternative therapies like the Gerson regime.
- She then rebranded as 'the natural nurse' and began promoting strict diets and unproven treatments on social media.