Driving in northern Indiana one recent evening, I came to the conclusion that religious broadcasters pretty much own the FM band in this part of the country. One station was playing contemporary Christian music, another gospel music. And three different stations were airing James Dobson’s radio program. Dobson, formerly of Focus on the Family, was touting a new novel he has coauthored, which fictionalizes all the bad things supposedly resulting from a decline in the American birthrate.