Senate Judiciary Privacy, Technology, & the Law Subcmte holds hearing on “Algorithms & Amplification: How Social Media Platforms’ Design Choices Shape Our Discourse and Our Minds.” Facebook VP for content policy Monika Bickert, Twitter head of US public policy Lauren Culbertson, YouTube dir of Govt Affairs & Public Policy for the Americas & Emerging Markets Alexandra Veitch, Center for Humane Technology co-founder & pres Tristan Harris, and Shorenstein Center at the JFK School of Govt at Harvard Univ research dir Dr. Joan Donovan testify.