that's not the case with our new numbers. >> ifill: dr. birks, 2030, you're talking about getting to zero. what is the possibility of that and how do you get there? >> we're talking about ending aids as a public health threat, so we certainly want all our h.i.v. positives, the 37 million people living with h.i.v. right now, to know their status and to thrive and to be on medication so they can thrive. to get there to the end is going to require us to bring all our prevention tools to the table and expand them in an appropriate way in absolute partnership with the community and i think we've been using the whitman-walker example. you can see what that clinic and its community outreach has been able to do. we want to translate what the whitman-walker clinic and others have been able to do in washington, d.c. to every city, village and community around the globe. you can see from what we just heard from justin, it's possible. >> ifill: dr. deborah birx, u.s. aids coordinator and justin goforth with the whitman-walker health clinic here in washingto