Fans can expect celebrities and more lighthearted commercials, along with glimpses of Taylor Swift, during the Super Bowl on Sunday, as corporate advertisers avoid the recent practice of using the big game to promote social causes. While high-priced Super Bowl commercials often play for laughs in trying to make an impression, the flashy productions can also reflect the national mood. Brands that previously took stands on issues such as diversity and climate change, are acknowledging that anything seen as political while attempting to market products to all consumers can be "treacherous to navigate," said Kim Whitler, a professor at University...