At the height of the Rust Belt primaries, FRONTLINE goes to Wisconsin where presidential candidates tap the deep-seated anxiety and insecurity that fuels tensions between American businesses and their employees. Correspondent Jeff Madrick looks behin... (more)d the heated political rhetoric to see how companies, workers, and civic leaders are wrestling with global competition and the end of an era of industrial affluence. In a volatile economic climate, what do corporations owe their employees and their communities?