The article goes into hare's attempt to refute objections to his account of morality which seemingly allows for the nazis' judgment to exterminate the jews. The author suggests that hare's defense rests on his demonstrating that if the principles of universalizability and prescriptivism are granted and their implications imaginatively grasped, Then "nobody but a madman" could hold that all jews ought to be exterminated. He argues that this defense rests on sociological and biological absurdities. (staff).