Thousands Lose Power as Ice Strikes Georgia; Cars Backed Up for Miles in North Carolina;Relentless Winter: More Snow is Coming; Difficult Weather Conditions Plague Sochi; Brian Williams Pays Tribute to Comedy Giant Sid Caesar; Do Mammograms Save Lives? Research Offers New Clues; Former New Orleans Mayor Faces Decades in Prison; Stars Come Out for White House State Dinner; 8 Corvettes Plunge Into Sinkhole.Feb. 13, 2014
