&gt; I&#x27;m not convinced that people linking immigrants and terrorism are particularly worried about the actual immigrants turning out to be terrorists in disguise.<p>You&#x27;d be <i>really</i> surprised. Your point is a valid one, but one I seldom see brought up - most people are just worried that for every 100 immigrants there&#x27;s a couple of actual terrorists in the lot... Mostly because nobody&#x27;s told them how stupid that notion is.