The radicalization of workers isn’t a steadily and inexorably upward process. It ebbs and flows for any number of reasons. Class understanding is made and unmake. And to understand each of these moments of making or unmaking requires a concrete analysis of that moment. In his analysis of the current GM strike, veteran labor reporter Steven Greenhouse unearths the background and larger canvas that prompted GM workers to go on strike after a long hiatus during which the strike weapon was put on the back burner. Of no small significance here were the recent strike actions by teachers and other groups of workers.