4                           This relaxation of tensions (detente) inaugurated by Communism can only be the fruit of political designs; that is, to reduce the growing tensions behind the Iron Curtain or to achieve the psycho­logical demobilization of the West, or to accomplish both of these ends. These are the very results which have been gradually and implacably achieved by international Communism.

Therefore, it has become indispensable for Catholics to resolve the moral and tactical problem created for them by this fact.

The potential of this study is evident in that an earlier edition penetrated the Iron Curtain and had great repercussions among Catholics there.