The United Church of Christ - famous for setting precedent - considers backing same-sex marriage at its national synod. As a federal constitutional amendment on marriage garners growing public support, one American Protestant church could soon go against the grain. During its national synod, which begins Friday in Atlanta, the United Church of Christ (UCC) will debate three marriage resolutions - one backing "full marriage equality" for same-sex couples, one defining marriage as between a man and a woman, and a third proposing further study of the issue. No one is predicting the outcome, but the UCC - a union...