Icicles hang from a highway sign near Waxahachie, Texas on Saturday, Dec. 7, 2013. Icy conditions are expected to last through the weekend from Texas to Ohio to Tennessee from a cold snap that covered much of the nation. (AP Photo/LM Otero)

Associated Press
Icicles hang from a highway sign near Waxahachie, Texas on Saturday, Dec. 7, 2013. Icy conditions are expected to last through the weekend from Texas to Ohio to Tennessee from a cold snap that covered much of the nation. (AP Photo/LM Otero)
Icicles hang from a highway sign near Waxahachie, Texas on Saturday, Dec. 7, 2013. Icy conditions are expected to last through the weekend from Texas to Ohio to Tennessee from a cold snap that covered much of the nation. (AP Photo/LM Otero)
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