The United States has an isolationist and insular culture, combined with a global and interventionist posture. This highly dangerous and febrile mixture, which greatly facilitates the task of the fear-mongers and chauvinists, needs a very exact and nuanced diagnosis. I don't think that analogies from the totalitarian model, however suggestive, are sufficient.
For the Sake of Argument: Essays and Minority Reports (ed. Verso, 1994) - ISBN: 9780860916284