Historians aren't very happy with Ken Burns. He's a simplifier; we complicate. He makes myths; we bust them. And he celebrates the nation, while we critique it. That's the party line, anyway, among my fellow academics. And while I agree with some of their attacks on the recently concluded TV series about the Vietnam War that Burns co-created and co-edited with Lynn Novick, there's something else at work here. It's called sour grapes.