The coldest, most dangerous blast of polar air in decades gripped the US Midwest and pushed toward the East and South and eastern Canada, closing schools and day care centres, grounding flights and forcing people to pull their hoods and scarves tight to protect exposed skin from nearly instant frostbite.
Many across the nation's midsection went into virtual hibernation, while others dared to venture out in temperatures that plunged well below zero Fahrenheit (minus 18 Celsius). » | AP | Tuesday, January 07, 2014
