As I stood in front of the new Mormon Temple in Liberty, Mo., it struck me as ironic that close to 175 years ago, Mormons were forced out of this same state. Whereas the Missouri public once urged their governor to force Joseph Smith and his followers out of the area surrounding Kansas City, Mormons began to return to the region in the 1900s, eventually gathering in such large numbers that the Church organization decided the region needed a temple. Which is why I came to visit. Latter Day Saints restrict temple access to members of their denomination who...