Arctic Blast Brings Record Cold to Millions Across U.S.

A dangerous Arctic air mass has gripped the United States, plunging temperatures to record lows across much of the country. Millions of Americans are facing sub-freezing conditions. The intense cold is not over. Forecasters warn that another surge of Arctic air is moving into the region. Meteorologist Lonnie Quinn has the latest forecast on the prolonged freeze. Correspondent Tom Hanson reports on the widespread impacts.