“To the man of action the first criterion in determining which means to employ is to assess what means are available. Reviewing and selecting available means is done on a straight utilitarian basis—will it work? Moral questions may enter when one chooses among equally effective alternate means. But if one lacks the luxury of a choice and is possessed of only one means, then the ethical question will never arise; automatically the lone means becomes endowed with a moral spirit. Its defense lies in the cry, “What else could I do?” Inversely, the secure position in which one possesses the choice of a number of effective and powerful means is always accompanied by that ethical concern and serenity of conscience so admirably described by Mark Twain as “The calm confidence of a Christian holding four aces.” To”