Icy Storm Freezes Out Airlines, Power and Marathoners

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An icy storm fueled by the coldest air of the season knocked out power to more than 200,000 customers from Texas to Tennessee, grounded thousands of flights and canceled the Dallas marathon.

The storm, which grew out of a blast of arctic air that swept down from Canada, reaches from coast to coast and deep into the U.S. South. A new storm developing tonight and tomorrow may bring snow from the Midwest to Boston.