Sam Harris speaks with Renée DiResta about Russia’s “Internet Research Agency” and its efforts to amplify conspiracy thinking and partisan conflict in the United States. Renée DiResta is the Director of Research at New Knowledge and Head of Policy at the nonprofit organization Data for Democracy where she investigates the spread of malignant narratives across social networks. She regularly writes and speaks about the role that tech platforms and curatorial algorithms play in the proliferation of disinformation and conspiracy theories. She is the author of The Hardware Startup: Building your Product, Business, and Brand. Website: www.reneediresta.com Twitter: @noUpside