It will get worse, look how many thousands that were not genuine refugees crossed through Europe last year.......look how many have "settled" in these EU countries.
To show concern or be worried about the outcome was deemed the usual tags.
Hard to tell although as warned by others it was a very silly decision to let thousands across Europe. More jihadists, more to radicalise others, areas taken over, nobody listened.
If the attacks were because of the attire, which is the attire worn in a civilised Western European country, then these people that do it or support it are sick.