ultr-sophisticated, but still any locking mechanism on nuke can be overcomed by sufficiently motivated adversary. And anyone who can steal the nuke is sufficien

ultr-sophisticated, but still any locking mechanism on nuke can be overcomed by sufficiently motivated adversary. And anyone who can steal the nuke is sufficiently motivated, no matter how ultra-sophisticated your lock is. Edit: and overcoming any kind of locking mechanism on nuke is certainly cheaper than building one yourself. What most people seem to forget is that problem with building nuclear weapons lies with logistics, not technical expertise.