It's a perilous time. Republican presidential hopeful Mitt Romney warned: "America is under attack from almost every direction. We have been attacked by murderous terrorists.... Our employers and jobs are threatened by low-cost, highly skilled labor from abroad. American values are under attack from within." That sinister "attack from within" comes from secular extremists. Mr. Romney fully appreciates that. Referring to America's Founders, Mr. Romney concisely explained: "[T]he authors of liberty recognized a divine Creator who bequeathed to us certain inalienable rights. They affirmed freedom of religion, and they proscribed the establishment of any one religion." Mr. Romney did not...