Newark Airport continues to be marred by hundreds of canceled flights and delays.

The FAA has put a ground delay process in place to ease traffic at the busy airport

and says planes departing to Newark are being held up an average of two hours and 41 minutes.

The problems are front and center after a technical failure caused widespread disruption last week. Air traffic

controllers who were in the thick of it have now taken special leave to recover from what they say

is traumatic stress, compounding what was already a massive staffing shortage. Transportation

Secretary Sean Duffy discussed the need for delays when he was on Fox yesterday.

You want to make sure that people are safe, and so you just have less departures out of the airport

until we feel comfortable and safe that the system isn't going to go down again.

We ask Secretary Duffy to join us tonight, and his office declined.

To help clarify some of the latest, we're joined now by our

aviation correspondent, Miles O'Brien. So Miles, walk us through the timeline of what transpired

last week and why it's still causing delays this week. Well, Jeff, it really boils down to a perfect storm.

What you have at the root of it is a very antiquated system,

which the FAA has now admitted, with some technology going back really to the 50s, copper wire,

floppy disks, very old technology. You have a chronic staffing problem among air traffic controllers. And at

Newark, since the middle of April, they've had a major reconstruction rebuilding project on one of

their big runways. All of that combined together prompted the FAA to try to augment its staffing by sending some controllers

and some positions to Philadelphia. That required a communication link, of course, with the

radars and the VHF radios. And when those systems did not work, some real trouble started to begin.

And that is what led to the cascade of effects that we're seeing right now.

Well, to better understand this, let's talk about what happened last week when that United Airlines flight from Charleston, South Carolina, was approaching Newark Airport. You've heard the

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