FILE PHOTO: Passengers wait for the resumption of flights at

1:21 pm Monday, March 27th, 2023

FILE PHOTO: A view of the air traffic control tower at O’Hare International Airport after the Federal Aviation Administration (FAA) ordered airlines to pause all domestic departures due to a system outage, in Chicago, Illinois, U.S., January 11, 2023. REUTERS/Jim Vondruska/File Photo