<p>In this March 3, 2010 file photo, a Costco customer pours a Diet Coke drink at Costco in Mountain View, Calif. A study by Beverage Digest released Thursday reports that Diet Coke has beat out rival Pepsi-Cola for the first time to become the second-most popular soft drink in the country.</p>
March 18, 2011
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March 18, 2011 10 p.m.
Full of fizz
Diet Coke passes Pepsi as No. 2 U.S. soda
Coca-Cola is winning the fight for America's soda drinkers.