What Mark Zuckerberg’s big talk about free speech left out

All week, we’ve been talking here about a central debate in our reckoning over big tech platforms and their power: what should stay up on the internet, and what should come down. The discussion has been fueled by two national conversations: one, led by Sen. Elizabeth Warren, about whether Facebook ought to exempt political ads from fact-checking. And the other, about how far the limits of free speech extend in a world where China is moving aggressively to restrict American companies from h