a gal la event to honor people making a difference in the world. i met a woman whose courage and selfless determination redefined words like bravery and dedication. >> since 1993, she has helped rescue more than 12,000 women and girls. her name is anuradha koirala. saving one person at a time, she has made it her life's mission to find freedom and redemption for thousands of women and girls forced into sex slavery. her organization is called maiti nepal, which means mother's home. >> the 2010 cnn hero of the year is anuradha koirala. >> in that moment i knew this would not be the last time our paths would cross. ♪ >> the snow-covered mountains of the himalayas are the first sight to greet most travelers arriving in nepal. its capital, kathmandu, is a busy hub for tourist traffic, climbers and trekkers drawn but the lure of everest. most who come tuesday as a gateway to adventure, but i'm here for a very different reason. sandwiched between china and india, nepal is also a magnet for another kind of human traffic. the tiny nation provides a steady s