Alex Stamos, the former Chief Security Officer at Facebook, and Ev Williams, the co-founder of Twitter and CEO of Medium, talk with Recode's Kara Swisher in these live interviews from the 2019 Collision conference in Toronto, Canada.In the Stamos interview: Is Facebook misunderstood?; Stamos’ proposed solutions; legitimate candidates vs. the Russians; how to protect ourselves from all election attackers; the weaponization of Facebook’s products; America’s reluctance to regulate; breaking up Facebook and Google; why big companies need to stop rewarding employees with stock; Stamos’ recommendations for Mark Zuckerberg; and is Facebook actually committed to change?And in the Williams interview: Why he left the board of Twitter; where social media is right now; why his venture firm Obvious Ventures doesn’t invest in social; its investment in Beyond Meat; Williams’ theories of venture investing; the lack of diversity in what companies get venture funding; how techlash has changed Silicon Valley; the many iterations of Medium; would Williams buy established media companies?; and is he worried about the media?