Artificial Intelligence (AI) could lead to the end of civilization and the extinction of humanity. Hitler, Stalin and their imitators appeal to emotion, a quality that AI lacks.
If we let it act alone, without human interference, its decisions will be based on reason. Less wars and savagery, we might suppose. And perhaps less, not more, possibility of extinction. If reason were the driving force instead of emotion, there would be a greater chance of being safe. It is difficult not to suspect that AI would represent a better bet than IH.