Polar vortex hits Americans with another day of record cold

Aired: 1/7/2014 | 0:03:08 | Clip
The polar vortex held its grip over the U.S., bringing frigid winds to places accustomed to cold winters and even sending ice and snow into the Deep South. The record negative temperatures caused some towns in Indiana to lose power and stranded train passengers near Chicago. Judy Woodruff reports.

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