<p>On the surface, Katherine Kersten's Nov. 20 column arguing that U.S. universities and colleges lack conservative diversity may seem reasonable. But by omitting important details and drawing illogical conclusions, Kersten has gotten the overall picture backwards. She bases her argument on a study by David Horowitz. Horowitz, his Center for the Study of Popular Culture (CSPC), and their tax-exempt patrons have had a surprising impact on our society. They wield their decidedly partisan political influence by using tax-exempt funds. Kersten's institution, the Center of the American Experiment (CAE), is funded by the same conservative philanthropies that fund Horowitz's CSPC. The only difference is scale. Whereas the CAE has received about $310,000 from the conservative philanthropies since 1994, Horowitz's CSPC has received in excess of $12 million since 1989.</p>