The Senate testimony of Frances Haugen on Tuesday was an eagerly awaited event.Last month, Ms. Haugen, a former Facebook product manager, leaked internal company documents to The Wall Street Journal that exposed the social media giant’s inner workings.How will Ms. Haugen’s insights shape the future of internet regulation?Guest: Sheera Frenkel, a technology reporter for The New York Times. Sign up here to get The Daily in your inbox each morning. And for an exclusive look at how the biggest stories on our show come together, subscribe to our newsletter. Background reading: Ms. Haugen told how Facebook deliberately made efforts to keep users — including children — hooked to its service.Here are other key takeaways from her testimony.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.