Did anyone here see Gangs of New York? There's nothing new under the sun. Then they were saying "let in the Irish, and the whole republic is going to Hell". Then "the yellow man is a danger to democracy, send back the Chinee". Later it was "let in the Italians and America will fail". Then it was "let in the Slavs and we may as well give up". Somehow the resentment is always the same and so is the proferred solution. And yes, we have been home to anarchists, communists, religious extremists and terrorists of varying ilk, but America always muddles through.