Airports in U.S. cities including Denver; Newark, New Jersey; and Burbank, California , experienced flight delays Monday amid shortages of air traffic controllers, according to federal flight data.  Federal officials have flagged more air traffic control facilities for low staffing levels in recent days than they have since the summer of 2022, when the post-COVID travel boom sent delays and cancellations soaring, according to a CBS News data analysis of Federal Aviation Administration airspace

Tag-uri: Coronavirus