Correspondence. A memorandum to J. Bryan Hehir. ~ On the subject of the moral acceptability of deterrence. He believes that the argumentation which supports the "reluctant judgment of conditional acceptance of the concept of nuclear deterrence is basically directed to the undoubtedly good moral and political end of avoiding nuclear war, but by immoral means and thus not to the avoidance of human actions which would be both sinful and socially and politically irresponsible.