The issue is not the killing of an American person per se. I recognize the legitimacy of killing as punishment for capital crime after presentation of evidence, due process and a jury trial. I recognize the legitimacy of killing in self-defense, which is a killing by someone likely to be harmed by an aggressor. I recognize the legitimacy of killing in the course of securing a military objective in a just conflict that is being waged in self-defense. Moreover, I do not believe in a moral duty to respond “proportionately” to an intrusion or attack, and I do believe in a military than can deliver crushing force in defense of the nation.
That said, let’s look at the assumptions on which the argument of those who support the killing of Al-Awlaki rest.
The first is that it was necessary to keep us safe.
It was necessary only if Al-Awlaki was in the process of committing a violent crime against the USA with a “detectable” probability of harming American civilians. Was he? We only have the word of the executive branch. Is that word enough? If you find the President trustworthy, then it is enough for you. If you do not, then it is not. But the institutions of a democratic republic are designed to protect us from abuse by leaders we do not trust.
In my last article, I drew a comparison between Bush’s invasion of Iraq and the killing on Al-Awlaki. The point was that in both cases, all we had to go on regarding the imminent threat posed by the target was the word of a president, which turned out to be wrong. This is why I stated that the extra-judicial killing of Awlaki can be justified only if Obama goes to pains to present evidence of the imminent threat posed by Al-Awlaki — and that evidence must be orders of magnitude stronger than that used to go to war in Iraq, which was wrong and led to the deaths of 100,000s of innocent people.