You're being downvoted because your comment suggests that Muslim immigrants are being protected from by certain governments against charges of violence. If it were local Catholic people who were having their criminal activity obscured for political purposes, then you would be upvoted. I get your point: many European governments refuse to accurately characterise criminal acts committed among Muslim refugees because they have a vested interest in keeping the citizens from having a complete picture of the effects of refugee policies in Europe.

Spending 5 minutes in Calais would make it very clear that the problem isn't as tidy and harmless as certain leftist groups would have you believe.

So you're being downvoted because there appears to be a leftist bent among many HN readers and suggesting government complacency when it comes to violence committed by 'protected' groups is punishable by downvote. Sorry, those are the rules. Anything slightly to the right of David Cameron occupies a place of contempt among this audience.