Europe is fucked, but they are not a useful comparison. They have let in millions and millions of Muslims. We have so few that that we don't face anything big like the threat they face. I agree we should be careful about immigration and be concerned about changing our culture in negative ways by allowing too many ragheads. My claim that we are safe now doesn't mean we should just import the entire population of Syria. It means we can happily go about our lives without fearing violence.