Investor says he tried to warn Facebook before the election

Roger McNamee, one of Facebook’s original investors and a mentor to Mark Zuckerberg, says he was concerned about the way “bad actors were taking the tools created for advertisers and using them to harm innocent people,” and alerted Zuckerberg and Sheryl Sandberg in 2016. But McNamee says they saw it as a PR problem, not a business problem. He sits down with Hari Sreenivasan.