Sub-Saharan Africa is no longer a troubled ‘dark continent.’ Most of its constituent countries are now enjoying significant economic growth and political progress. The new Africa has begun to banish the miseries of the past, and appears ready to play an important role in world affairs. Thanks to shifts in leadership and governance, an African renaissance could be at hand. Yet the road ahead is not without obstacles. As world renowned expert on African affairs, Robert Rotberg, expertly shows,...