I can't remember now how the poem goes except for "catastrophe of my personality" which I think is true of Don, Betty, and Pete. These three have some very disfunctional lives and ideas. They don't relate well to others, they don't reach out, and Don is the saddest of the three. He knows he's hurt others, he admitted so to Anna, but I think he is the least likely to be capable of personal change, I don't care how many times he baptized himself in the mighty Pacific. I think Peggy is the one who truly cleansed herself. The "catastrophe" that could happen due to nuclear war didn't affect anybody too much. Where do you go in New York if the Big One could happen? I'd go get a drink like Betty.