There's a lot of human ingenuity applied in deciding when and how to blow things up. Munition can be timed, or use some sort of proximity sensing, etc. Even ar

There's a lot of human ingenuity applied in deciding when and how to blow things up. Munition can be timed, or use some sort of proximity sensing, etc. Even artillery grenades, hurled out in great numbers, have such technology (and have had since WWII); for a nuclear torpedo, even a radar-operated fuze or at least a magnetic sensor would make sense.