As Barack Obama prepares to get a stimulus plan launched this winter, carefully planting seeds of cross-party warmth and nurturing each rare shoot, he may wish to avoid unrelated matters that cause bitter partisan showdowns and lay waste to the whole damn thing. At least, that seems wisest when you're asking for a trillion or so in new spending. So people understood why Rahm Emanuel, during a meeting with the Wall Street Journal's CEO Council last November, dodged an inquiry about a contentious piece of legislation called the Employee Free Choice Act.