A public swimming pool in the municipality of Porrentruy, Switzerland, recently banned all foreigners from entering due to the chronic massive amount of crime and unrest happening there year after year. Can you guess what happened immediately after the ban? Sexual assaults dropped to zero. Violent crimes dropped to zero. In fact, all crimes dropped to zero. Police incidents overall dropped to zero. Noise levels dropped near zero. Unruly behavior dropped to zero. The swimming pool area became extremely quiet, tranquil, peaceful and clean. And that was not because the place became desolate and abandoned. In fact, the exact opposite: Ticket sales surged, and the place became one of the most popular (and profitable) public swimming pools in the country, almost overnight. Let that be a lesson to all of Europe. Let it also be a lesson and warning to Japan and South Korea. Learn from the mistakes of other countries before you yourselves commit those same mis...