"There is an inherent gap between the legal and the historical analysis of genocide. The legal definition is narrow... shaped in large part by... interests of the states whose representatives drafted it. From a historical perspective, violent destruction of groups... has occurred... many of which do not align with the stringent legal definition. The high threshold... and... dominant interpretations... by international tribunals have led to... genocide... typically recognized only after a significant portion of the... group has... been destroyed and... suffered irreparable harm."