United Airlines is reporting about 4% of its employees have tested positive for COVID-19, illustrating the operational struggles U.S. airlines are battling as the omicron coronavirus variant washes over the country.

White House-brokered negotiations helped airlines dodge a bullet—for now. Listen in as our editors explain why the aviation industry is so concerned.

Although unruly passenger rates in the U.S. continued to trend downward from a peak in early 2021, investigations of those incidents for the full year remain elevated compared with historical levels.