The major problem with 'global zero' initiatives is that if one nation can achieve nuclear primacy they become the de-facto owners of the world. No one wants t

The major problem with 'global zero' initiatives is that if one nation can achieve nuclear primacy they become the de-facto owners of the world. No one wants to risk that. Alternatively, the problem with not pursuing global zero is that the probability that someone will eventually use them approaches 100% in long enough timescales.