'The law hasn’t been written yet — yet — that holds carriers of user-generated internet content responsible for the user-generated content they carry, just like movie studios, television networks and book, magazine and newspaper publishers. Most people don’t have the resources to employ a battalion of fact checkers. Right now, on Facebook is an ad claiming that Joe Biden gave the Ukrainian attorney general a billion dollars not to investigate his son. Every square inch of that is a lie and it’s under your logo. That’s not defending free speech, Mark, that’s assaulting truth.'