Travel September 5, 2023 4:31 pm ‘Systemwide technology issue' led to nationwide ground stop for United Airlines A nationwide ground stop was issued for United Airlines flights Tuesday, just as the long Labor Day weekend travel was coming to an end. Kate Chappell has a recap. Local 3:51 Can toxic chemicals in your clothing make you sick? 2:02 Senior citizens targeted in series of Chinatown armed robberies 2:15 Chicago's Christmas tree lit up for the holiday season 13:08 Happy to Report: Your dose of good news for the week 1:12 Official Chicago Christmas tree lit as holiday season begins