Almost without exception, students of security policy are not only analysts and proponents of abstract theories, they are also deeply concerned with issues of contemporary international politics and have strong policy preferences. There are likely to be connections here, and it is by no means obvious that the latter are subservient to the former. With all due respect to Kenneth Waltz, very few of us became drawn to international politics by reading his books. I doubt if I was atypical in becoming interested because of the events that were occurring when I was growing up and in being fairly quick to develop my own opinions, as ill-grounded as they were. By the time I was exposed to serious academic work, let alone starting to publish, my views about American foreign policy and a general political outlook were well established.