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.
When I see something I like, that's all that counts. What they use, how they get there, I never bother them.
I had written in another draft a completely different kind of fight, but they said they couldn't afford to shoot it. They needed a fight scene, though, so I was told to put a fight scene in, but not the one I had written.