UN humanitarian chief: world needs to 'wake up' and help stop violence in Sudan

Sudanese families displaced from El-Fasher reach out as aid workers distribute food supplies at the newly established El-Afadh camp in Al Dabbah, in Sudan

The UN's top humanitarian and emergency relief official has told NPR that the lack of attention from world leaders to the war in Sudan is the "billion dollar question".

(Image credit: Marwan Ali)