I would remind some of those who have left comments, that Traditional Catholicism excludes doing something intrinsece malum so that good may come of it. However good an end is, it can never justify an intrinsically evil means.
This is why PF was wrong in saying, or implying, that the End of enabling people "in second marriages" to live happily ever after, justifies their living in Adultery.
The Catholic Faith applies just as much to the morality of killing people as it does to the morality of having sexual intercourse with people.
Catholic moral teaching cannot be excluded from any human action.
To say that 'theologians interfering in the questions of Nuclear Warfare' is analogous to 'soldiers interfering in Theology' subverts the whole Catholic notion of morality and law. Catholic Morality is not simply about telling people off for genital misdemeanors. There are Ten Commandments.
To condemn theologians for 'interfering in questions of Nuclear Warfare' is as illogical and misguided as condemning theologians for 'interfering with medics in the question of Abortion'.
If you do not believe that Warfare is as subect to the Catholic Ethical Tradition as every other thing a human being does or may do, you are in, shall we say, an anomalous relationship with Catholicism. Just like the Pelosis and the Bidens and the Kennedy clan.