People visit the AIDS Memorial Quilt on display as part of the Smithsonian Folklife Festival on the National Mall in Washington, Thursday, July 5, 2012. An AIDS-free generation: It seem

 

              People visit the AIDS Memorial Quilt on display as part of the Smithsonian Folklife Festival on the National Mall in Washington, Thursday, July 5, 2012. An AIDS-free generation: It seem
People visit the AIDS Memorial Quilt on display as part of the Smithsonian Folklife Festival on the National Mall in Washington, Thursday, July 5, 2012. An AIDS-free generation: It seems an audacious goal, considering how the HIV epidemic still is raging around the world. Yet more than 20,000 international HIV researchers and activists will gather in the nation's capital later this month with a sense of optimism not seen in many years _ hope that it finally may be possible to stem the spread of the AIDS virus. (AP Photo/Jacquelyn Martin)