 CBS News special report. Banks, hospitals, and other businesses have been crippled by a worldwide computer outage overnight. CBS's Chris Van Cleave. Airlines have been among the worst impacted here in the U.S. American, Delta, United all had to ground their flights overnight. American and United say they have begun restarting their operation, but we're seeing very long lines at airports. There are more than 1,000 flight cancellations in the U.S. right now, over 2,000 delays. The outage is tied to Microsoft and the cyber...