To the Bishops he says this.  Not to us.  I mean, he probably says that to us too, but not in public.  An official demand for an official retraction:

The Pope has ordered an ultra-conservative bishop from Britain to recant his denial that Jews died in gas chambers during the Holocaust.

In a move designed to head off condemnation, Pope Benedict XVI ordered Bishop Richard Williamson to unequivocally and publicly renounce his claims that there were no gas chambers and that fewer than 300,000 Jews died in the Nazi death camps instead of the accepted figure of six million.

The German Chancellor, Angela Merkel, and many politicians, prelates and faith leaders have rounded on the Pope after his decision to lift excommunications on Bishop Williamson, an Old Wykehamist and Cambridge graduate, and three other traditionalist bishops.

The Vatican said: “Bishop Williamson, in order to be admitted to episcopal functions within the Church, will have to take his distance, in an absolutely unequivocal and public fashion, from his position on the Shoah, which the Holy Father was not aware of when the excommunication was lifted.”