Muck of the cause of this refugee crisis is the EUs failed polices.And Europe has endangered itself by letting in so many.And these people live by different laws,an other political systems or form of government that directly opposes freedom and Democracy.And that other form of government is Islam.And yes Islam is a form of government,just like Democracy,Communism,Fascism,Nazism... but a lot different... for it has its own laws,Sharia law,which is absolute, and its own religion with is entangled in to ever thing and binds it all to gather... with make this form of government very dangerous. And with in a year or two Europe is going to exploded into violence and war as this two different political systems collide.Because Freedom,Democracy and human rights can not exist with Islam and Sharia law,there two opposites that cannot exist together.