Islam in Europe: perception and reality

[ignoramus]

So what can the west do?
How do you decide who are the peaceful ones and who are the potential terrorists?

I don't think one can.
Only a multi generational change of thinking may accomplish that.
And by the time that happens, you'll find the women are magically not wearing their stupid slave clothes either.
These are the same women who demand we not dictate to them what they can and can't wear. Go figure.