The nation's aging air traffic control system will be replaced with one that is aimed at 21st-century needs while improving safety, Transportation Secretary Sean Duffy announced Thursday.

The award-winning new Terminal A may be the pride of Newark Liberty International Airport. But behind the scenes, the technology that’s keeping the planes in the sky is frighteningly out of date. Some of it relies on floppy discs and used parts sourced from eBay, federal officials said this week.