Iranian President Mahmoud Ahmadinejad has again cast doubt on the Holocaust and called on Muslim nations to take a proactive stand on the Palestinian issue. The president's comments, published Tuesday on Iranian state television's Web site, were the second time in a week that he has doubted the Nazi destruction of European Jewry during the World War II. Ahmadinejad provoked an international outcry in October when he called Israel a "disgraceful blot" that should be "wiped off the map." "If the killing of Jews in Europe is true," the Web site quoted Ahmadinejad as saying, "and the Zionists are being supported because of this excuse, why should the Palestinian nation pay the price?" The television did not broadcast Ahmadinejad's comments, and the Web site offered no reason.