Facebook CEO says delay in flagging fake Pelosi video was 'execution mistake'
5:58pm PDT - June 26th, 2019 instagram down - ReutersFacebook Inc Chief Executive Mark Zuckerberg on Wednesday said his social media company took too long to flag as false an altered video of U.S. House Speaker Nancy Pelosi that appeared to show the Democratic Representative slurring and tripping through a spee…