We actually live in the safest period of human history. Fear is irrational in this context and the people who give in to it are, shall we say, not of the most introspective or critical thinking types. Just look at the so-called leader of the free world who's stirring the pot while acknowledging his love of uneducated people. THAT'S the real problem. We should be working at reducing barriers everywhere, instead of building monumentally stupid and ineffective walls, designed to address non-existant threats.