As in other recent red-state teachers' strikes, the Arizona teachers were agitating not just for raises but for a wholesale improvement of the state's system of education.
As talks continue between English doctors and the National Health Service, a reminder that physicians on strike don't (usually) put patients in danger.
The latest entry in a special project in which business and labor leaders, social scientists, technology visionaries, activists, and journalists weigh in on the most consequential changes in the workplace.