Copenhagen - Michael Frayn [15]
Margrethe Because it had been done? Or because it wasn’t you who’d done it?
Heisenberg Both. Both. Otto Hahn wants to kill himself, because it was he who discovered fission, and he can see the blood on his hands. Gerlach, our old Nazi co-ordinator, also wants to die, because his hands are so shamefully clean. You’ve done it, though. You’ve built the bomb.
Bohr Yes.
Heisenberg And you’ve used it on a living target.
Bohr On a living target.
Margrethe You’re not suggesting that Niels did anything wrong in working at Los Alamos?
Heisenberg Of course not. Bohr has never done anything wrong.
Margrethe The decision had been taken long before Niels arrived. The bomb would have been built whether Niels had gone or not.
Bohr In any case, my part was very small.
Heisenberg Oppenheimer described you as the team’s father-confessor.
Bohr It seems to be my role in life.
Heisenberg He said you made a great contribution.
Bohr Spiritual, possibly. Not practical.
Heisenberg Fermi says it was you who worked out how to trigger the Nagasaki bomb.
Bohr I put forward an idea.
Margrethe You’re not implying that there’s anything that Niels needs to explain or defend?
Heisenberg No one has ever expected him to explain or defend anything. He’s a profoundly good man.
Bohr It’s not a question of goodness. I was spared the decision.
Heisenberg Yes, and I was not. So explaining and defending myself was how I spent the last thirty years of my life. When I went to America in 1949 a lot of physicists wouldn’t even shake my hand. Hands that had actually built the bomb wouldn’t touch mine.
Margrethe And let me tell you, if you think you’re making it any clearer to me now, you’re not.
Bohr Margrethe, I understand his feelings …
Margrethe I don’t. I’m as angry as you were before! It’s so easy to make you feel conscience-stricken. Why should he transfer his burden to you? Because what does he do after his great consultation with you? He goes back to Berlin and tells the Nazis that he can produce atomic bombs!
Heisenberg But what I stress is the difficulty of separating 235.
Margrethe You tell them about plutonium.
Heisenberg I tell some of the minor