Plenty, according to the new film, The Cartel. The film purports to show "educational system like we've never seen it before. Behind every dropout factory, we discover, lurks a powerful, entrenched, and self-serving cartel." Trailer below. In fact, the power of teachers unions is part of an even greater problem: the growing ranks of unionized government workers, a phenomenon that creates a permanent constituency favoring the growth of government -- one that is well organized, motivated, and well funded. For more on public sector unions, see the study, "Vallejo Con Dios: Why Public Sector Unionism Is a Bad Deal for Taxpayers and Limited Government."