This is Dr. Sunitha Krishnan. At the age of 15, she was gang-raped by 15 men. She is now 40, and has saved more than 3200 trafficked girls from sexual slavery. She has received innumerable death threats and has been beaten up more than a dozen times. Yet she soldiers on, rescuing and providing shelter to victims of trafficking giving them new lives and a hope for a better future. And what is her biggest challenge? Us. Hear her story and find out why.