1. This is where you need to take in the current situation and when we are talking about someone like this, it is all the matters. Like I said, this cat is out of the bag. I would rather have the current governments safeguard the nukes then proliferate them to a point where someone who is dis-satisfied decides to use them and kill innocent people to try and prove a point or achieve their goals.
And, again, what makes a person working for the government different from a person working for a private company?
2. Why do you think the person would say anything, another speculation with no reason to believe that it is the case. Maybe the person selling it, gets informed about its end use and supports it so they are glad it happens. Another option is that it could change hands. I never said this was an anarchy state only problem, where did you get that from? You are so caught up in your idea of Anarchy that you assume someone who doesn't support it is so colored in their thinking that they would think in that manner. I keep seeing interesting patterns debating with you all, quite interesting.
So... Your only concern then is with making sure that only some people being allowed to have nukes and not others... I guess in that case, same question again: what makes those some people different from others?
You should ask the question, what safeguards would be different than for a private company. Vastly different and more secure. Many things make some people different than others.
People in the government that are in positions to have access to sensitive areas like nuclear weapons and technology are vetted, monitored and routinely moved around. Genetics and mental disposition are another two obvious answers to what makes someone different than another, but I assume you know that.