Moreover, We desire to extend Our thanks to all upright directors and producers of radio programmes for their fair assessment of the needs of the Church to which many of them have borne testimony, either by freely assigning a suitable time for the propagation of God's Word, or by supplying the necessary equipment. By this way of acting, they are certainly sharing in the special reward of apostolic work, even though it is being carried out over the air, according to Our Lord's promise: "Who receives a prophet in the name of a prophet, will receive the reward of a prophet".51

In these days, technical excellence in radio programmes requires that they be in conformity to the true principles of the art; hence their authors and those engaged in preparing and producing them must be equipped with sound doctrine and a well-stored mind. Consequently, We earnestly invite them also, as We did the members of the Motion Picture industry, to make full use of that superabundance of material from the storehouse of Christian civilization. Finally, let the bishops remind State officials that it is part of their duty to exercise appropriate diligence in safeguarding the transmission of programmes relating to the Catholic Church, and that special consideration should be given to holy days and to the daily spiritual needs of Christians.