Facebook CEO Mark Zuckerberg is testifying before Congress this week. Millions of people around the world are interested in what he has to say. The stakes are high for Facebook as well as for our Republic. Censorship and regulation are double-edged swords. We’ve seen how the mainstream media “serves” the public, especially when there’s no competition. If social media end up self-regulating, then they will become just another echo chamber for the left.