The following is a link to an interesting article by Warner P. Woodworth, a professor in the Marriott School of Business at Brigham Young University.
I think the following quote from the article expresses an important sentiment: "BYU is not — nor should it ever become — an LDS seminary experience. BYU is a facility for higher learning and the receiving of a genuine liberal education. Many Mormons who are pro-Cheney would prefer that no Democrats ever be allowed to speak at BYU. They have largely had their way when one reviews the disproportionate number of conservatives who have dominated campuswide speeches over the decades."