I realize this has probably been hashed out, but somebody help me out here:
Given libertarian morality, wouldn’t it be perfectly acceptable to obtain ownership of a nuclear weapon if people voluntarily agreed to build one just to have one and not use it? It seems like the risk to society would outweigh the ownership claim by the individual to the nuclear bomb because the only way you could use a nuclear bomb would be to destroy an immense amount of land and people.
Now, before you say, “why would somebody do that?” keep in mind that thought experiments aren’t meant to be realisitc. They are meant to uncover flaws in a theory like a reductio ad absurdum. So whether or not this would even be likely is beside the point. The point is that, to me at least, it seems reasonable to outlaw the building of nuclear bombs or people purchasing tanks and missles due to the reasonable cause that these people would use it for public harm and not for self-defense. So while prohibition of the obtaining of these items would technically violate property, this would be a case where it seems justifiable to violate property rights.
PS: Note, I’m not talking about a defense agency or anything like that, but a regular person who has a nuke in their basement.