A flight attendant gathers trash on a flight aboard a Boeing 737 Max from Dallas Fort Worth Airport to Tulsa, Oklahoma, December 2, 2020.Carlo Allegri | ReutersCursing at flight attendants. Harassing lawmakers. Refusing to wear masks.Tensions are rising in air travel, prompting safety concerns as airlines continue to reel from the coronavirus pandemic’s impact. In the wake of the deadly riot at the U.S. Capitol and a spate of disruptions on board, airlines and the Federal Aviation Administration promised zero tolerance for bad behavior. Airlines, airports and the Transportation Security Administration are adding staff and increasing security measures ahead of President-Elect …
