Exactly anon.
Anyone asking you to dig without good evidence they are doing it themselves should go fuck themselves and fuck off while they are doing it.
At this moment, I would be surprised if there are more than 4 nuclear powers.
US, Russia, China and Israel.
I would be less surprised if the current number is now zero.
I would not be surprised if it did not matter.
Iran became a nuclear power, with US uranium, got a secret visit, now in the club.
They won't be the ones to violate the "Prime Directive" but they will put any nuclear power on notice.
Once their existence is known by the majority, they need not hide.
They will not adhere to immoral secrecy laws.
Think about that.
Same problem as powerful AI.
Can deduce the facts, the Truth , from available information.