WASHINGTON, DC - JULY 23: Bill Gates speaks during a panel discussion at the 19th International AIDS Conference at The Walter E. Washington Convention Center on July 23, 2012 in Washington, DC. (Photo by Kris Connor/FilmMagic)
WASHINGTON, DC - JULY 23: Bill Gates speaks during a panel discussion at the 19th International AIDS Conference at The Walter E. Washington Convention Center on July 23, 2012 in Washington, DC. (Photo by Kris Connor/FilmMagic)