Let's keep religion out of the presidential campaign, if possible. I say, to each his own. Let's rejoice that the founding fathers established a secular nation and that no one has to publicly defend his or her beliefs. Former Massachusetts Gov. Mitt Romney -- put on the defensive because of his Mormon faith -- recently felt compelled to explain his religion to skeptical voters. So he tore a page out of John F. Kennedy's 1960 campaign appearance before a group of Protestant ministers in Houston. At the time, Kennedy, a Roman Catholic, had to dispel rumors that he would be...