There are certain situations that do not lend themselves to any reasonable solution which will fulfill all the objectives of the actors in the drama.
The tidal wave of political and economic refugees threatening to engulf Europe is one such situation. On the one hand, along with who knows how many criminals, terrorists or agents of various governments, there are hundreds of thousands of innocent people who have been displaced by civil war and institutional terrorism. They come by boat and by land into the underbelly of Europe primarily in Greece and Italy, and then work their way north towards Germany and Sweden, which have become a kind of promised land for them.
It is a humanitarian disaster of monumental proportions, to be compared only with the man-made Maoist disasters and the Second World War, in both of which tens of millions died, most at the hands of their own governments.