Canada's top court says Ottawa has the authority to redefine marriage to include same-sex couples, but religious officials cannot be forced to perform unions against their beliefs. The Supreme Court of Canada refused to say whether the traditional definition of marriage - between one man and one woman - violates equality rights. It noted the federal government has already accepted lower-court judgments that excluding gays from marrying is discriminatory. "The government has clearly accepted the ruling of lower courts on this question and has adopted their position as its own. "The parties to previous litigation have now relied upon the...