Half of the Americans will be unemployed. That will start a Civil War. That is, if a Libertarian President could bypass a Democrat (protectionist) Congress.

Duncan Hunters plan to leave Iraq is to displace American divisions with Iraqi divisions. That is not like Bush's plan which is to stay there indefinately. I'm an isolationist by the way, but not an irrational one like Ron Paul. You have to consider what is politically doable and what is not politically doable. For example; how would Ron Paul and a Democrat congress leave Europe?