US faces record low temperatures with fresh cold blast

Parts of the US are braced for potentially record-breaking low temperatures as an Arctic chill brings more freezing weather. It has been blamed for 16 deaths and the cancellation of more than 5,000 flights since Wednesday. via Pocket http://www.bbc.co.uk/news/world-us-canada-25609411#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa