Even though I've never been to Hiroshima, I get what you mean: I only used a nuke once, and not even because I needed to. I just wanted to see what happened. And then the animation of the explosion appeared and "
Field of poppies" started being played in the background. It was horrifying. I know, you have to do a lot of horrifying things during a game, but, as you said, this felt very graphic and touching.