Comment Re:Obligatory (Score 1) 310
Outside of US territory.
See, within the US or when targeting Americans, the Constitution and other laws apply.
When the US kills non-citizens on foreign soil, there's no US law against it. That's because that's armed combat. (It might also be a covert operation, in which case whether it's legal is up to the country in which it took place. It's probably not legal.) Dealing with other countries killing your citizens within your borders has traditionally been dealt with through this thing called "war", and, more recently, through the UN and other international alliances.