MSNBC: United Airlines Issues Nationwide Ground Stop Due to Computer Issue

EXCERPT:

COSTELLO: “They have requested now from the FAA nationwide ground stop. This is a very, very rare move. And they are citing some sort of a computer issue. As I check right now on the flight aware misery map and the airports right now that are already dealing with cancellations and delays, a lot of them are already United hubs. Denver, for example, is on the list. I've also got a Newark Airport. San Francisco already is on the list. Chicago is on the list. We do not have an ETA on when they might be able to get this computer issue resolved, but to actually ask the FAA to declare a ground stop is a very, very unusual move and really underscores the severity.”