The social-media giant's immediate problem may be Elizabeth Warren, but its long-term problems are deeper and entirely internal.

NRPLUS MEMBER ARTICLE F acebook founder Mark Zuckerberg, writing in the Wall Street Journal, insists that his company will not act as a proxy censor for the world’s governments — that it has neither the capacity nor the legitimacy to do so, and that attempting it would constitute an improper exercise of corporate power. “I don’t think it’s right for a private company to censor politicians or the news in a democracy,” he writes. With exceptions, of course: “We don’t allow content if there’s a risk of real-world harm, and we don’t allow voter suppression.”

Zuckerberg’s attempt to position Facebook as a kind of night …