Millions face freezing temperatures amid arctic blast

Snow is falling and temperatures are dropping as an arctic invasion plunges across much of the country. By Thursday, about 22 million Americans will face temperatures below freezing. David Begnaud reports. Subscribe to the “CBS Evening News“ Channel HERE: Watch Full Episodes of the “CBS Evening News“ HERE: Watch the latest installment of “On the Road,“ only on the “CBS Evening News,“ HERE: Follow “CBS Evening News“ on Instagram: http://bit