Welcome to Grafton, New Hampshire, a not-very-picturesque town where the streets are dark, the fires are unregulated, the cats are missing, and the camps are armed. Oh, and there are bears. Smart, dangerous bears. Matthew Hongoltz-Hetling tells us the story of “When a Libertarian Walked Into a Bear: The Utopian Plot to Liberate an American Town (and Some Bears).”