The U.S. Department of Transportation revealed new details Wednesday about its timeline to improve Newark Liberty International Airport's air traffic control system.Secretary Sean Duffy previously said he hoped to activate a new fiber line to improve Newark's air traffic controller communication by the end of May.

Operations at Newark, one of the main airports serving New York City, have improved significantly after the federal government imposed flight cuts following a series of major disruptions, U.S. Transportation Secretary Sean Duffy said on Wednesday.

The problems that disrupted flights at New Jersey’s largest airport this spring could be repeated anywhere across the country, so Transportation Secretary Sean Duffy is trying to sell