The Rains Down in Africa

Once it was a shining example of how a country can benefit from turning away from its racist policies. More recently, however, while the rest of the continent is growing, according to this article in the Economist, South Africa is experiencing darker days. What happened?: http://www.economist.com/news/leaders/21564846-south-africa-sliding-downhill-while-much-rest-continent-clawing-its-way-up?spc=scode&spv=xm&ah=9d7f7ab945510a56fa6d37c30b6f1709