Twelve years ago the International Criminal Court was set up to be the scourge of war criminals and mass killers everywhere - there would be no more impunity for the worst of crimes. How does the court's record stack up against that grand ambition? Thus far all of its cases have come from Africa, and just two convictions have been handed down from the Hague. HARDtalk speaks to Luis Moreno-Ocampo, who was the ICC's chief prosecutor for a decade. Why has the court failed to deliver on its promise?