The Changing World is a series of powerful documentaries, each of which takes a long look at a single global issue, from geo-political hegemony to world health concerns. A special collaboration between BBC World Service and PRI's The World, the series has the luxury of examining multiple aspects of a single topic over one or two hour-long programs. It is hosted by respected journalist and news anchor Lisa Mullins, and it relies on the BBC's most seasoned correspondents and journalists to research and report the full story behind the issue.