The mostly unfettered inflow of “refugees” from—pick a source, but mostly the Middle East—into Europe is beginning to awaken Europe’s western and central nations to the terrorist risk they face from that flow (eastern Europe’s nations have long been well aware). That relatively uninhibited flow, with its sample that have been caught, should be clanging alarm bells for us, too.
Authorities in Europe say they have foiled several terror plots, some involving suspects posing as refugees, raising alarm about a growing array of threats from extremists.