Three high-profile wildcat strikes have caught business watchers and union leaders by surprise in recent weeks. Could they be bellwethers for a rising tide of worker militancy? A wildcat strike is one that occurs with little notice or legal sanction. Wildcats are often organized in violation of a contractual commitment not to strike or a legal prohibition to do so, and in defiance of both the employer and official union leadership. Non-union workplaces wildcat by striking without formally certifying or affiliating with a union. Wildcat job actions have sparked some of the largest strike waves and union gains in American history, and the revitalization of the 21st century labor movement will require a degree of worker organizing that is not dependent on union staff and resources. So spontaneous job actions merit attention…..