In the past five years, a cadre of fact-checkers has marched through the institutions of journalism and installed itself in the U.S. media as a privatized, quasi-governmental regulatory agency. What’s wrong with facts, you say? Fueled by a panic over misinformation, the fact-checking industry is shifting the media’s primary obligation away from pursuing the truth and toward upholding vague notions of public safety, which it gets to define. In the course of this transformation, journalists are b...