Ye Shiwen: 'I will never use drugs'

China's Ye Shiwen competes in the women's 200m individual medley final during the swimming event at the London 2012 Olympic Games on July 31, 2012 in London.
China's Ye Shiwen competes in the women's 200m individual medley final during the swimming event at the London 2012 Olympic Games on July 31, 2012 in London.

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    Ye Shiwen: 'I will never use drugs'

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CNN's Erin Burnett talks to a Sports Illustrated reporter about the controversy surrounding Chinese Olympian Ye Shiwen.