Vanya, a business professor at the local community college, is preparing her lecture for labor-management relations. Which of the following is incorrect regarding union membership in the United States?
1) The largest growth in employment is occurring in the service industries, and these industries typically are not unionized.
2) The National Education Association is affiliated with the AFL-CIO.
3) Heavily unionized industries either have been decreasing in size or have not been growing as fast as nonunionized industries.
4) The International Brotherhood of Teamsters union is part of the AFL-CIO.