Exchange of the day

There has been a fresh eruption of violence in South Sudan.  Asked by The World's Marco Werman whether the issue is still the conflict between the president and vice-president, Dale Willman replied that "It's not clear what this latest round of fighting is about, to be honest," before going on to mention factors such as poverty, low oil prices, and ethnic divisions.  He said that the currency has dropped by 90 percent since December and that about 4 million South Sudanese (out of roughly 9 to 11 million total population) are 'food insecure'.