text:  Atlanta Airport spokesperson Andy Gobeil says more customer service agents are roaming through the crowds to assist passengers. We're a busy airport. We're an efficient airport. And we are able to, for the most part, roll the punches. So it is busy. There are lines down there. But it is not at all chaotic. Cyber security experts say the scale of this global outage is unprecedented. For NPR News, I'm Liliya.