You see SKA, you;re just now with the programme here are you?
If you are white, and belong to a rich ecconomy, you can appoint yourself policeman of the world, and basically tell other people what they can and can't have. This especially applies if the people who are getting uppity are the sort of people that used to be colonies in the days when Britain had an empire - you know, people like Inda ... America .. hang on, the logic of this argument has just collapsed ...
Anyway, forgetting all that history nonsense, anyone who is likely to be a pest and use their nuclear weapons for very very bad things (clue - check the colour chart: anyone with anything resembling a suntan is in this catagory) - then they can;t have them.
And if you may have them, probably not, but hey, we have a lot of generals to pay, and we have to give them something to do to justify their money, then the West will jolly well send in lots of large guys with big boots on to show you the error of your ways.
It's called 'The War on Terror'.
Of course, you could get picky and wonder if the definition of 'terror' depends who'se gun barrel you are staring down, but that's just being a spoilsport.
"I've got one, you can't have one, because i say so, and I'm bigger than you."
In the playground, that's bullying, in politics, it's a 'Defence Policy'.
Clear now?
Good.