It is the West which will suffer most from this stupidity. When America withdraws from its paternal role as investor and protector of the West and its dependents, the world will become colder. Hitler was only possible because the Wall Street crash of 1929 cut off all the investment being made by America in Germany. We need to be careful to prevent too great a withdrawal of American from the rest of the world. It is certain that the rest of us are in no way able to assume the burden that America has carried since 1945.