Not to pick on Ms. Palin. Truth is, there are few things more fully bipartisan than ducking a question. The art of making sound while saying nothing has become so ordinary and ubiquitous a part of politics as to defy notice, like wallpaper. The process takes on the flavor of twice-chewed gum, the players playing their prescribed roles in which interviewers pretend to believe they will get straight answers and politicians pretend to believe they have given them. And then TV and radio pundits spin the nothing that was said, tell us whom to blame, whom to scorn, whom to fear, at decibel levels that would humble a jet engine.