 not just an airline problem. This problem, this tech outage goes around the world. It's affecting banks, hospitals, companies like FedEx and CBS. And it's all from one company, a cybersecurity firm called CrowdStrike. They did a software update that had an error in it. And the CEO of CrowdStrike says this was not a cyber attack. Some airlines like Delta have begun to fly. But for some companies, some firms affected by this whose systems have totally crashed,