Can we end AIDS by 2030?

At the 2015 International AIDS Society Conference, researchers confirmed that starting HIV patients on antiretroviral drugs early does prevent AIDS-related illness and deaths. Gwen Ifill talks to Justin Goforth of Whitman-Walker Health and U.S. Global AIDS Coordinator Dr. Deborah Birx about how far we have come in the struggle against HIV/AIDS, and the goal of ending the disease by 2030.