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House flight is aware of reports of crashes.

Tonight, the global tech outage, grounding thousands of flights, leaving passengers stranded

at airports here at home and around the world.

We showed up for our flight this morning, and it is not happening.

What we're learning about how the glitch has affected businesses, hospitals, and even

emergency call centers.

We're going to keep at this until every computer system and every

component of our IT apparatus are working exactly the way that they should. The CBS evening news

starts now. Good evening. I'm Maurice Dubois in for Nora O'Donnell. It is being called the largest

IT outage in history. And it could affect your flight, your surgery, your deliveries, even your paycheck,

and the cause of faulty software update. Millions of workers were met with the blue screen of death when they turned on

their computers today. Airports across the country and around the world were packed with stranded

passengers. Plains were grounded by the thousands, not by the weather, but by this technical

tsunami. More than 4,000 flights were canceled around the world today, More than 2,600 of them in the U.S.

at Atlanta's Hartsfield-Jackson International Airport.

The world's busiest, a quarter of all flights were canceled.

We have team coverage tonight, and CBS's Chris Van Cleave will start it off from the Phoenix Airport.

Good evening, Chris.

Maurice, about half of those cancellations affecting just one airline Delta and those blue

...