US snow storm paralyses New York and Washington DC in potentially record-setting blizzard

A powerful winter storm will keep its grip on much of the northeastern US on Saturday after already grounding more than 8,500 flights, knocking out power to 225,000 homes and businesses, and dumping more than a foot of snow on Washington and half that on New York. Another 15 to 25 centimetres is possible in the nation's capital, while New York and...