[aaronbrethorst]

Homer : Well, there's not a bear in sight. The Bear Patrol is sure doing its job.

Lisa : That's specious reasoning, Dad.

Homer : Thank you, sweetie.

Lisa : Dad, what if I were to tell you that this rock keeps away tigers.

Homer : Uh-huh, and how does it work?

Lisa : It doesn't work. It's just a stupid rock.

Homer : I see.

Lisa : But you don't see any tigers around, do you?

Homer : Lisa, I'd like to buy your rock.

https://www.youtube.com/watch?v=xSVqLHghLpw

[cm2187]

To the OP’s defence, there has been numerous, large scale murderous terrorist attacks in Europe over the same period, so it’s not like if there was no bear in sight.

Now you can debate whether it is the result of good policing or of a much smaller muslim immigration or some other factor.