On "", the duo described their social and political views as libertarian. In addition to disbelief in the paranormal and pseudoscience, Penn & Teller also take a view of doubtfulness to government authority. In various episodes of their show, they have heavily criticized both the Internal Revenue Service and the Environmental Protection Agency, as well as taken stances against circumcision and gun control, and in support of ideas such as freedom to eat fast food, private property, and lower taxes. Penn & Teller are both H. L. Mencken research fellows with the Cato Institute, a libertarian think-tank and research organization.