XVII International AIDS Conference in Mexico City. Interviews with activists from across the world, representing non-governmental organizations advocating for HIV prevention and the rights of youth.

Helene Gayle is an AIDS expert who has been working in many different initiatives in the US, among them the Centers for Disease Control (CDC). She also works in President Obama's advisory group on HIV/AIDS. Here she talks about understanding and changing behaviors.

Julie and Ken from the Australian Prostitutes Collective talk about their program for HIV/AIDS prevention among female and male sex workers, among which one third are also IV drug users. APC offers social support, needle exchange and sex education.