Just as radar warns of approaching storms, so does the flood of migrants entering Europe warn us of a deluge yet to come, not only for Europeans, if they continue to allow unrestricted immigration, but for the United States.

The Gatestone Institute, a nonpartisan, not-for-profit international policy council and think tank, is in possession of what it describes as a “leaked German intelligence document,” which says, “We are importing Islamic extremism, Arab anti-Semitism, national and ethnic conflicts of other peoples, as well as a different understanding of society and law.”

White House spokesman Keith Maley said, “The president believes that one of our nation’s greatest strengths is our rich diversity.” I doubt terrorists believe that. I don’t believe that diversity, as practiced in America, exists in any country with a Muslim majority. What we are witnessing is the complete breakdown and failure of multiculturalism.

Leftists in Europe and the United States have promoted multiculturalism, believing that once Muslims experience our freedoms and dedication to equality they will want to be like us. It doesn’t appear to be working and anyone familiar with the Koran and its “kingdom of this world” instructions knows it likely won’t.

European leaders have deliberately closed their eyes to what they see unfolding in their countries, and in others.

Our enemies see our weakness and failure to understand their objectives, which include destroying the West and establishing a worldwide caliphate. Not all Muslims are terrorists, to be sure, but large numbers of radical Islamists profess allegiance to the faith and they are more than willing to wreak havoc in pursuit of their goals.