The Presbyterian Church (U.S.A.) became one of the largest Christian denominations in America to endorse gay marriage when its General Assembly voted in Detroit yesterday (June 19) to allow pastors to conduct same-sex weddings and approved a constitutional amendment defining marriage as between "two people" rather than "a man and a woman." The authorization for pastors to perform gay weddings takes effect immediately and applies only to ministers in the 19 states where the practice is legal. The measure passed by a vote of 317 (61 percent) to 238 (39 percent) and was classified as an "Authoritative Interpretation" of the...