Dangerously Cold Weather Again Today

(Undated)  --  It's colder than it's been in decades from the Midwest to the East Coast.  The Midwest is absolutely frigid this morning, with people in places like central Illinois dealing with temperatures approaching 20-degrees-below zero.  Add wind chills to that and it feels more like 50-degrees below.  School's cancelled in Minnesota, Chicago and parts of Michigan, where officials say it's just too dangerous to go outside.