In 2007 just before the celebration of Italy's Holocaust Memorial Day the Italian government approved a bill that made denying the Holocaust a crime and stiffened prison sentences for those found guilty of inciting racial hatred.
The decree, submitted by Justice Minister Clemente Mastella, received unanimous approval by the Romano Prodi cabinet..

As this crime can result in a prison sentence I think Roberto that, if you do actually possess ANY evidence for your accusations, and it is not just another Hasbara inspired piece of smear tactics, then you have a moral duty to either put up or - shut up!