Megyn Kelly will be staying home next month when her fellow NBC stars travel to South Korea for the Olympics — raising new questions about the standing of NBC News’ highest paid star. The Olympics is a command performance for any high-profile star or executive at the Peacock Network, which has paid nearly $1 billion to broadcast the 2018 Pyeongchang Games in the United States. While it’s unclear if Kelly made the decision to stay home herself, it’s unusual nonetheless. NBC traditionally sends its entire panoply of news stars to the games, and true to form, both the “Today” show...