I was not aware that you were referring to current infrastructure, I assumed since you were talking about solar and wind, which also need more build outs, that we were talking about building new infrastructure. I also wasn't making any judgments based on legislation, since a decent amount of their justifications are "nuclear bad", I will grant you that it is a considerable hurdle in most places of the world. This is also why I chose not to factor in the fact that nuclear fuel is generally also very useful for weapons which is another large political hurdle. As to your point about the secrecy of the refining facilities, I personally am opposed to security through obscurity, and I cannot currently think of a reason why the facilities need to be opaque, especially considering that I believe it helps alleviate large amounts of the political issue.