Fifty years after the assassination of President John F. Kennedy, Americans are still enthralled with all things Kennedy. There has been an endless stream of books, articles, and front-page tabloid headlines. And when a Kennedy speaks out on Catholic doctrine, the mainline media treats their pronouncements as ex cathedra.

The latest such pronouncement came from the president’s daughter, Caroline, at the 2012 Democratic Convention: “As a Catholic woman, I take reproductive health seriously, and today it is under attack.” The attack this abortion supporter was referring to was the objections by the Church and other religious institutions to Obama’s attempt to force them to provide contraception and abortion-inducing drugs...