Gov. Chris Christie signed a bill Monday barring licensed therapists from trying to turn gay teenagers straight, making New Jersey the second state to ban so-called conversion therapy, along with California. The bill passed both houses of the New Jersey Legislature with bipartisan support in June. Assemblyman Tim Eustace, who sponsored the bill and is openly gay, described the therapy as "an insidious form of child abuse." In a note accompanying the bill, Christie said he believes people are born gay and that homosexuality is not a sin. That view is inconsistent with his Catholic faith, which teaches that homosexual...