Arctic blast threatens millions of Americans
More than 220 million Americans are bracing for sub-zero temperatures as a brutal arctic blast sweeps across much of the country. CBS News weather producer David Parkinson has more on what to expect in the coming days.
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More than 220 million Americans are bracing for sub-zero temperatures as a brutal arctic blast sweeps across much of the country. CBS News weather producer David Parkinson has more on what to expect in the coming days.
