Daniel Hannan's excellent overview article describing the common collectivist roots of internationalist Marxist Socialism and German National Socialism is a topic that bears constant repetition to the attentive public. The subject has received previous detailed exposure in vital works such as Erik von Kuehnelt-Leddihn's Leftism: from de Sade and Marx to Hitler and Marcuse, and Jonah Goldberg's Liberal Fascism: The Secret History of the American Left, From Mussolini to the Politics of Change