 Metro Atlanta resident Dawn Hodges broke down in tears after her flight to Denver to visit her granddaughter was canceled. I was really looking forward to the trip and wanted to see my girls, and that's not going to happen. The outage appears to stem from a software update malfunction issued by American cybersecurity company CrowdStrike. Airport officials say some flights have now resumed. For NPR News, I'm Julian Virgin in Atlanta. This is NPR.