The defining moment of my visit to New Orleans a year ago occurred in a gift shop. I'm somewhat embarrassed to admit this, but at least it wasn't the kind that sells feather boas and t-shirts with jazz-playing lobsters. I wasn't a sorority girl nursing my hangover at Café Du Monde during Mardi Gras; I was a tourist visiting what used to be a sprawling, stately slave plantation. I was busy mulling over that subtly troubling experience, browsing through the gift shop's bookshelves, when I came to a curious array of volumes. The title The South Was Right! jumped out...