With the hospitalization of conservative radio talk show host Rush Limbaugh, questions about his overall health and ability to maintain his radio schedule have become a matter of concern, especially to his avid followers (reportedly near 14 per week). They are questions that should be considered. What if Rush Limbaugh were unable to continue with his radio show? What if he died? Who would -- who could -- take Limbaugh's place, maintain his audience, and deliver much the same neoconservative message? News broke on Wednesday that Rush Limbaugh was rushed to Queens Medical Center, a hospital in Honolulu, Hawaii, because...