From Texas to Virginia, the South has spoken with almost one voice on marriage equality, amending state constitutions to ban marriage for same-sex couples. It’s “almost” one voice because there’s a discordant note in the Southern choir. North Carolina, which likes to distinguish itself as a “vale of humility” surrounded by more bombastic neighbors, is the last state in the region without such an amendment. That fact is repeated constantly in the debate over a May 8 referendum when voters will have a chance to change the situation. But while it’s bandied about by both sides, it’s less clear what the distinction means.