In December 2009, Serge Klarsfeld defied an existing consensus within the Jewish community by saying that the beatification of Pope Pius XII was an internal matter of the Church. He said that Jews should not get too involved in the process. Many Jews were protesting the beatification, as they said that Pius XII had contributed to the persecution of Jews throughout Europe, and had not brought the power of the church against the Nazis for their mistreatment of Jews and other persecuted peoples.