Genocide v Crimes Against Humanity

What does 'genocide' mean? How does it differ from 'crimes against humanity'? And why should there be such tension between two apparently related concepts - and between the two lawyers who devised them? Joshua Rozenberg explores the origins of international criminal law.

Producer: Ben Crighton
Editor: Penny Murphy

(Image: The bones of thousands of genocide victims inside a crypt in Nyamata, Rwanda. Credit: Chip Somodevilla/Getty Images)