The World Jewish Congress has repeatedly called for the prosecution of presumed Nazi war criminals. WJC President Ronald S. Lauder said in 2011: "There must never be impunity or closure for those who were involved in mass murder and genocide, irrespective of their age". The WJC would persist in its efforts to bring the "few old men out there who have the blood of innocent Shoah victims on their hands" before courts of law, to be tried and held accountable for their actions.