Flight cancellations appear on screens near AirTran ticketing counters at Hartsfield-Jackson International Airport in Atlanta Thursday, Nov. 19, 2009, A problem with the system that collects airlines' flight plans caused widespread flight cancellations and delays across the U.S. Thursday. It was the second time in 15 months that a glitch in the flight plan system caused delays.
By Mark Heller, Tribune
By Mark Scarp, contributing columnist
By Jerry Brown, contributing columnist
Guest Commentary by Bill Richardson
Guest Commentary by Shawn Thiele