How Botswana's government and citizens successfully mobilized to contain the worst fall-out from AIDS:

While the news isn't click-your-heels great--tragically, one in four Botswanans is HIV-positive--it's hugely invigorating the country defied the World Health Organizations projections and is treating HIV rapidly and effectively.

From the Daily Beast:

http://www.thedailybeast.com/blogs-and-stories/2010-06-04/in-saturday-is-for-funerals-unity-dow-and-max-essex-show-how-botswana-beats-aids/