LiveScience: A treacherous winter storm that is sweeping across the southeastern United States has dumped snow, sleet and freezing rain over a region stretching from the Texas Gulf Coast to the Carolinas. As the storm moves into the Northeast, the icy blast is leaving a trail of destruction, with downed trees and power lines leaving hundreds of thousands of people without power in parts of Georgia and South Carolina. As of Feb. 13, the National Weather Service (NWS) reported about an inch of ice accumulation...