Super Bowl ads aim for the heart - and sometimes lower

After a year of political and cultural upheaval, Super Bowl advertisers appear to be pulling back from themes of unity in favor of in-game stunts and ads that aim for the heart — and in some cases even lower.The stakes are high since a 30-second spot costs more than $5 million for airtime alone. The goal is to capture the attention of the more than 110 million viewers expected to tune in to the big game on Feb. 4 — ideally by striking an emotional chord with the game audience that wi