Last year it was Paris and other cities in France. We've seen it as well in England. Now we've got this in Italy:
A Crying Need for Immigration Reforms
Even the most egalitarian one-worlders must stop for a moment and ask themselves, is assimilation possible or likely? Can we continue to ignore the free flow of people of a significantly dissonant culture across our borders? Do they honestly wish to abide by a rule of law in a civilized world? Can co-existance be possible?
The evidence at first glance seems to say no.