This is Undark

This week on Entanglements: Is fluoride toxic at low levels? Our hosts explore this question in conversations with a professor from the University of Illinois Chicago College of Dentistry and a neuropsychologist and professor at York University.

This week on Entanglements: Should we run outdoor geoengineering experiments? Our hosts dive into this fiercely debated topic with an atmospheric chemist from Harvard University and a planetary physicist from Oxford University.

This week on Entanglements: Should we try to prevent autism? Our hosts speak with Jill Escher, a philanthropist, president of the National Council on Severe Autism, and parent of two young adults with severe nonverbal autism, and Eric García, the Washington bureau chief at The Independent, who hims…

We're back! This week on Entanglements: Should we make viruses more dangerous? Our hosts discuss this question, and its contentious history, with a microbiologist from the Johns Hopkins School of Public Health and a virologist from the Pasteur Institute in Paris.