Duterte UN slur: 'My mother was especially offended'

UN Human Rights Commissioner Zeid Ra'ad Al Hussein is working to hold Philippines President Rorigo Duterte to account over thousands of alleged extra-judicial killings during his hardline anti-drugs crackdown.

But is it possible to conduct high-level UN diplomacy with someone who has called you a "son of a bitch"?

Lucy Hockings of BBC World News's GMT programme asked Mr Hussein.