 On 21 September 1945 , the general secretary of the World Jewish Council , Dr. Leon <unk> , presented an amount of money to the pope , " in recognition of the work of the Holy See in rescuing Jews from Fascist and Nazi persecutions . " After the war , in the autumn of 1945 , Harry Greenstein from Baltimore , a close friend of Chief Rabbi Herzog of Jerusalem , told Pius XII how grateful Jews were for all he had done for them . " My only regret " , the pope replied , " is not to have been able to save a greater number of Jews . " 
