Why does same-sex marriage make sense to so many people? The momentum toward the full legalization of same-sex marriage seems to intensify with every passing month - or even faster. The moral divide in this nation is now seen most clearly in the distance between those for whom marriage is exclusively heterosexual and thus a settled issue and, on the other hand, those who honestly see the legalization of same-sex marriage as a moral mandate required by justice. Given the venerable status of marriage and its universally established heterosexual character - at least until very recently - the burden of...