Susan Sontag died of leukaemia in New York on December 29 at the age of 71. The obituarists described her as "one of America's most influential intellectuals, internationally renowned for the passionate engagement and breadth of her critical intelligence and her ardent activism in the cause of human rights" (The Financial Times, Dec. 30). Her essays "expanded the universe of subjects it was 'all right' for intellectuals to take seriously," such as drugs, porn, and pop, ensuring that we'd "get used to these as intellectual topics." All of which is one way of saying that Ms. Sontag has made a...