NEW YORK -- They say that opposites attract, and in the case of Sen. John Kerry and Teresa Heinz Kerry, that may be true -- at least in their public personas. While the Democratic presidential nominee has a reputation for being aloof and serious, his wife is perceived as the exact opposite. She can be downright playful in public -- dancing or laughing or poking fun at her husband as if he's her straight man. Such as this weekend, when her husband told reporters he was going to spend a Sunday at home working. Heinz Kerry quipped that he has...