On Tuesday, the Supreme Court heard oral arguments in the case to determine whether the Constitution requires states to issue same-sex marriage licenses and requires other states to honor same-sex marriages performed in those states. A primary argument by the plaintiffs is that gay marriage is covered under the equal protection clause of the 14th Amendment and that if straights can marry, then so can gays. The counterargument is that marriage is a privilege and not a right, a union of one man and one woman sanctioned over millennia by virtually every culture and country over time as the stable...