8. Although we tend to think of labor unions as representing manufacturing employees, many office and service-industry employees, teachers, and professional belong to unions. Visit the websites of two of the following nonmanufacturing unions and discuss how they help their members: the Office and Professional Employees International Union (http://www.opeiu.org), the American Federation of State, County, and Municipal Employees (http://www.afscme.org), the National Education Association

(http://www.nea.org), the Actor’s Equity Association (http://www.actorsequity.org), and the American Federation of Musicians (http://www.afm.org). What are the differences, if any, between these unions and those in other industries?