> That's indeed the traditional rationale for MAD and the development of nerve gas, biological weapons, and hydrogen bombs. The problem with this argument is that anybody can use it, the argument appears just as sound to North Korea than to the US, and is leading to a world-wide stockpiling of dangerous technologies.

But that’s not what happened, right? I mean, it is if you stop reading history just before the first non-proliferation treaties began being implemented. This was almost half a century ago, though, so IMO it doesn’t make sense to stop reading at that point.