I'm not sure I'm the sort of actor people are hugely interested in finding out an awful lot about.
Basically you come up with the fictional idea and you start writing that story, but then in order to write it and to make it seem real, you sometimes put your own memories in. Even if it's a character that's very different from you.
I still believe that any country understands that if they use nuclear weapons, they will be wiped out of existence. They could be irrational in many ways, but I don't think they're irrational to the point that they're ready to annihilate their own country.