 what happened in europe mattered eventually uh... because of world war two there was smooth holly which is a part of an economic policy which basically said we don't want trade now there was a spill of barriers and there was an immigration policy that i think during this period argued we had too many jews and too many attacks of what you have no point is that we've been to this kind of with that period of isolationism protections and they just made it is among a little concerned that we may be going to the same period uh... i hope that