YouTube has become the latest social media platform to suspend President Trump’s account, saying one of his videos incited violence. The move comes after similar action was taken by Facebook, Twitter, and other tech giants. What responsibility does Silicon Valley bear for last week’s Capitol Hill riot? Roger McNamee was an early investor in Facebook and an adviser to Mark Zuckerberg and now has written a damning article for Wired: “Platforms Must Pay for Their Role in the Insurrection.”