You're a tourist with money.   Many of the immigrants are either extremely poor, or fear for their lives in corrupt nations.   I don't see any equivalency at all between the two.
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I don't want to bring terrorist here anymore than you do.    Why in heaven's name would think otherwise?     

Do you think I haven't considered how I'd feel if one of my children was killed by terrorist?

But REALITY tells me I should be worried about their driving on American highways far more than worrying about a terrorist bombing.
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You blanket fear of Muslims is exactly the result the terrorist were seeking.   They want you fearful, they want you angry, they want you to give them higher status.

I've got no fear at all of my national sovereignty being threatened by thugs brainwashed by religious hogwash.     *Nor do I trust Christians who turn quickly to violence to solve conflict then claim God is on their side.

Stay Calm, Carry On