US to shut down airspaces amid controller shortage, $0 paystubs as shutdown drags on

US Transportation Secretary Sean Duffy has warned that parts of American airspace may have to be shut down if air traffic controllers continue missing work amid the ongoing government shutdown. On Sunday, more than 5,000 flights were delayed, with waiting times stretching to over four hours. ABC reported that workers, who have been working without pay, have started calling in sick, disrupting flight operations.