fortune tellers in Warren, Mich., must be fingerprinted and pay an annual fee of $150 — plus $10 for a police background check — to practice their craft. But officials in Warren, a town of 138,000 near Detroit, say it's time to weed out tricksters. "We had no mechanism of enforcement to protect people against unsavory characters," Regulating an industry that deems itself clairvoyant, has no standard education requirements and yet rakes in cash for revealing spiritual truths may itself be an act of faith. It also might make good economic sense: about 1 in 7 Americans consulted a psychic...