This New Year's Eve was a lot less fun in Europe than in previous years as violence and threats of violence put a damper on the party atmosphere. Fireworks were cancelled in Brussels for fear of an imminent terrorist attack which precipitated the arrest of two members of a North African motorcycle club. In Munich, two train stations were evacuated when officials received intelligence of an imminent ISIS suicide attack. And in three German cities--Hamburg, Stuttgart, and Cologne--mobs of men, reportedly of "Arab or North African origin," allegedly attacked female partygoers. This is the new Europe. It's not going to...