“These men too were criminals. Their crime was vast. They had lost a war. And they had lived.”

"President Truman Did Not Understand" http://www.peak.org/~danneng/decision/usnews.html in U.S. News & World Report (15 August 1960)
Variant: If the Germans had dropped atomic bombs on cities instead of us, we would have defined the dropping of atomic bombs on cities as a war crime, and we would have sentenced the Germans who were guilty of this crime to death at Nuremberg and hanged them.
As quoted in The Decision to Drop the Atomic Bomb (1996) by Dennis Wainstock, p. 122
Context: Suppose Germany had developed two bombs before we had any bombs. And suppose Germany had dropped one bomb, say, on Rochester and the other on Buffalo, and then having run out of bombs she would have lost the war. Can anyone doubt that we would then have defined the dropping of atomic bombs on cities as a war crime, and that we would have sentenced the Germans who were guilty of this crime to death at Nuremberg and hanged them?
But, again, don't misunderstand me. The only conclusion we can draw is that governments acting in a crisis are guided by questions of expediency, and moral considerations are given very little weight, and that America is no different from any other nation in this respect.

A Tradition of Victory, Cap 14 "The Toast is Victory!"

Cardinal remembers Pope Pius XII as wartime hero, saint (2 August 2012) Catholic News Agency https://www.catholicnewsagency.com/news/25402/cardinal-remembers-pope-pius-xii-as-wartime-hero-saint

"Anarchist's Progress" in The American Mercury (1927); § III : To Abolish Crime or to Monopolize It? http://www.mises.org/daily/2714
Context: Once, I remember, I ran across the case of a boy who had been sentenced to prison, a poor, scared little brat, who had intended something no worse than mischief, and it turned out to be a crime. The judge said he disliked to sentence the lad; it seemed the wrong thing to do; but the law left him no option. I was struck by this. The judge, then, was doing something as an official that he would not dream of doing as a man; and he could do it without any sense of responsibility, or discomfort, simply because he was acting as an official and not as a man. On this principle of action, it seemed to me that one could commit almost any kind of crime without getting into trouble with one's conscience.
Clearly, a great crime had been committed against this boy; yet nobody who had had a hand in it — the judge, the jury, the prosecutor, the complaining witness, the policemen and jailers — felt any responsibility about it, because they were not acting as men, but as officials. Clearly, too, the public did not regard them as criminals, but rather as upright and conscientious men.
The idea came to me then, vaguely but unmistakably, that if the primary intention of government was not to abolish crime but merely to monopolize crime, no better device could be found for doing it than the inculcation of precisely this frame of mind in the officials and in the public; for the effect of this was to exempt both from any allegiance to those sanctions of humanity or decency which anyone of either class, acting as an individual, would have felt himself bound to respect — nay, would have wished to respect. This idea was vague at the moment, as I say, and I did not work it out for some years, but I think I never quite lost track of it from that time.

Irena Antić, as quoted in May '92 (2012) p.16
About

Source: The Runaway Queen

Source: To His Coy Mistress (1650-1652)
Context: Had we but world enough, and time,
This coyness, Lady, were no crime.
We would sit down and think which way
To walk, and pass our long love's day.

Source: Drenai series, Legend, Pt 1: Against the Horde, Ch. 28
Context: It would be a fine thing if war could be conducted as a game where no lives were lost. At the end of a battle combatants could meet [... ] and drink and talk.

Source: The Great Gatsby