Arctic chill sweeps North AmericaTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoPeter Wilke01/07/2014January 7, 2014Much of the United States and Canada has been overtaken by an extreme cold snap, causing travel chaos and warnings from authorities for people to stay inside to avoid frostbite.https://p.dw.com/p/1AlqaAdvertisement