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Sanjay Gupta talks to CNN Hero Derrek Kayongo and presenter Laura Dern backstage at the 2011 Heroes tribute in Los Angeles
Sanjay Gupta talks to CNN Hero Derrek Kayongo and presenter Laura Dern backstage at the 2011 Heroes tribute in Los Angeles

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    CNN Heroes backstage: Derreck Kayongo

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CNN Heroes backstage: Derreck Kayongo

Sanjay Gupta interviews top 10 CNN Hero Derreck Kayongo and presenter Laura Dern at "CNN Heroes: An All-Star Tribute."

CNN Heroes backstage: Derreck Kayongo

Sanjay Gupta interviews top 10 CNN Hero Derreck Kayongo and presenter Laura Dern at "CNN Heroes: An All-Star Tribute."