20 The message reiterates the argument which has been so often used in drawing a contrast between the situation in Italy and in other countries where the Church is really persecuted - "countries against which there have never been heard words spoken so strong as the words pronounced against Italy where religion has been restored." We have already said that We conserve, and shall still conserve a remembrance and an enduring gratitude for what has been done in Italy for the welfare of religion, a gratitude not lessened by the fact that contemporaneously, a not less and perhaps greater benefit has occurred therefrom the party and to the regime We have stated and have repeated that it is not necessary (and would indeed oftentimes be decidedly injurious to the ends desired) that everything should be heard and known which We and this Holy See through Our representatives and through Our brothers in the episcopate, have to say and have to remonstrate wherever the interests of religion demand it, and in the measure which, in our judgment, the situation indicates, especially in those places where the Church is really persecuted.
Source: Non Abbiamo Bisogno (Vatican.va)