The Mormons

Few days ago I found an ad in the New Yorker for a PBS show The Mormons. At the time I wondered how connected this show might be to Mitt Romney's presidential bid and whether any of the funding resources were connected to him. I watched the show tonight (there is another episode tomorrow which will talk more about contemporary mormons) and I have not learned whether Mitt paid for the show. But one thing was rather clear: almost all the interviewed were mormons. I guess that makes sense, mormons do know most about mormonism :) I don't really understand why America is worried about mormons. They aren't any more dangerous/different than/from any other average religion subscriber.