The media loves a sex scandal, and the scandal cup of late runneth over: Maria Shriver and Arnold announce their divorce, John Edwards is indicted for covering up an affair with campaign funds, and Anthony Weiner tweets nude photos despite a pregnant new bride. It’s often accepted on its face that such behavior represents a lapse in some fundamental moral law. Indeed, above all else, such stories are catchy and popular because most Americans have fierce attachments to particular notions about marriage and the raising of children. Whether one rejoices in or bemoans the momentum gained by the gay marriage, one tends to do so passionately. When, in a recent profile of Dan Savage, Slate contributor Mark Oppenheimer explored Savage’s notion that monogamy isn’t necessarily the best indicator of marital or parental success, the comments section was abuzz with sound and fury.