U.S. snowstorm: ‘Once in a generation’ storm leaves millions of Americans struggling for holidays

High winds, snow and arctic temperatures are causing one of the most treacherous Christmas travel weekends the U.S. has seen in decades. The so-called “once in a generation” storm has grounded flights, stopped trains and shut down roads, leaving millions of Americans struggling to get home for the holiday. Jennifer Johnson reports.

• Winter storm power outages may not be fixed until Christmas Day: ‘A difficult go’