U.S. snowstorms turn Thanksgiving holiday travel into a nightmare

Heavy snows in the United States closed roads and canceled nearly 900 flights on what was forecast to be the busiest day of the year for highways and airports, stranding hordes of travelers trying to head home on Sunday after the Thanksgiving holiday.The storm was expected to dump 12 inches (30.48 cm) of snow on the western part of the Boston metro area by Monday morning, according to the National Weather Service.