Two words much of the country don't want to hear again anytime soon: "polar vortex".It was a brutal week, weather-wise, for our friends in the northeast and Midwest, as temperatures plunged well below zero in many areas, and sent wind chills plummeting to 50 below and lower! In Chicago, a man had to rescue his dog in frigid Lake Michigan, and then needed help himself, to get out. Great rescue by the cops!