Section 22 pages 270- end Q 9

I think he has not heard that term in a long time. The line between good and bad has been blurred to obscurity in a dead world. The man has also probably done some "bad" things to safeguard his family. The man in the parka must think about what the boy means.   

He pauses because “good” and “bad” has become sort of a gray subject in the world they live in. What is good to one person may not be good to another person.