Mark Sanford’s confession to adultery may be roiling South Carolina and traumatizing his family, but it’s bequeathed to the rest of us a handy new euphemism for sneaking in a little romance on the sly: hiking the Appalachian Trail. That was the original reason given by Sanford’s staff for his unexplained six-day absence from the state’s capital — an explanation whose credibility evaporated when the governor resurfaced, not from an extended nature walk but a covert sojourn to Buenos Aires, where his mistress lives
