Officials are still trying to figure out exactly what led to the Federal Aviation Administration system outage on Wednesday but have traced it to a corrupt file, which was first reported by CNN. In a statement late Wednesday, the FAA said it was continuing to investigate the outage and "take all needed steps to prevent this kind of disruption from happening again." "Our preliminary work has traced the outage to a damaged database file. At this time, there is no evidence of a cyberattack," the FAA said. The FAA is still trying to determine whether any one person or "routine...