In 1999, a seemingly incongruous collection of protestors converged in Seattle to shut down the meetings of the World Trade Organization. Union leaders, environmentalists dressed as endangered turtles, mainstream Christian clergy, violence-advocating anarchists, gay and lesbian activists, and many other diverse groups came together to protest what they saw as the unfair power of a nondemocratic elite. But how did such strange bedfellows come together? And can their unity continue? In 1972-...