Something we could do without, and that doesn't make any murdered person alive again. I'll go even further and say someone who kills a person and then saves the

Something we could do without, and that doesn't make any murdered person alive again. I'll go even further and say someone who kills a person and then saves the lives of 10 is still a murderer. This stuff is not up for calculation, really. But even if it was: did they also invent microwaves, or do you think there is just a tiny chance that the microwave oven would have been invented either way, at some point or another?