The diplomats knew what they were walking into. The job of a diplomat is to negotiate with potentially hostile nations. The diplomat didn't deserve it, but knew he wasn't choosing the safest job, either. The relative that was killed might not have had, or wanted to have, anything to do with the situation, but was rather targeted because of something out of control (being a relative to another man). Out of the two, I'd certainly say that the KGB are the ones who took the more inhumane action. To respect that because "Well, at least they were actually doing something!" is to disregard any right to being a civilized society. This is the case because it's not about whether or not the victim deserved it. Rather, it's about what we're willing and unwilling to do, for our own sake.