Summary: Europe's leaders have opened their borders to immigrants with radically different cultures. It's one of history's largest public policy experiments, made with little or no planning or research about its consequences. In 1968 Enoch Powell, a genius British politician, foresaw this -- and warned about its effects on Britain. The generation now growing up … Continue reading Martin van Creveld: Britain’s smartest leader warned about open borders in 1968. It blew their minds.