An airline passenger walks between ride share vehicles after arriving at Chicago’s Midway Airport just days before a major winter storm Tuesday, Dec. 20, in Chicago. Charles Rex Arbogast/AP hide caption toggle caption Charles Rex Arbogast/AP An airline passenger walks between ride share vehicles after arriving at Chicago’s Midway Airport just days before a major winter storm Tuesday, Dec. 20, in Chicago. Charles Rex Arbogast/AP Millions of Americans may want to reconsider their holiday travel plans, as bitter cold, biting wind and heavy snow are expected across the U.S. this week, imposing treacherous conditions just days before Christmas. A bulletin from the National Weather Service (NWS) says a “strong arctic…