4,000 Flights Canceled As Powerful Winter Storm Wallops 2,000-Mile Stretch OF US

4,000 Flights Canceled As Powerful Winter Storm Wallops 2,000-Mile Stretch OF US Thousands of flights are canceled on Thursday morning as a powerful winter storm spreads wintery precipitation over a 2,000-mile stretch of the United States.  The winter storm is expected to create hazardous condition...