Sometimes, when I do not feel like reading an entire post or article, I just google the author and begin to find things like this:

http://islamversuseurope.blogspot.de...-kern-lol.html

Apparently he likes to copy the work of others, yet is represented as an expert. The Gatestone Institute I looked up before, it is also an anti-islamic fringe site that is trying to pass off as serious.
As for no-go-areas, define what that is. There arecertainly some neighborhoods where the immigrant-inhabitants are not very nice to the police or even the "locals", those should obviously not exist. You can however also go to the wrong area in the US and get robbed by a mexican gang with crosses on their necklaces, is that also a "muslim no-go-area" or is that better? And when orthodox jews in Israel attack Christians and/or their churches, does that mean it's a "muslim no-go-area" or does that count under valid cultural diversity? I'm not entirely sure about the definitions and aim of the topic here.

https://electronicintifada.net/conte...goes-virtually
http://www.jpost.com/Christian-News/...naction-410508
http://www.telegraph.co.uk/news/worl...ader-says.html
http://www.johnsanidopoulos.com/2009...stones-at.html

Again, do I support the existance of such behavior or the fact that the governments do not always do enough to stop it? Eh, who would?
Should we allow our societies to have areas where noone dares to go? Certainly not... So why do they exist almost anywhere and why do people only complain when they are created by muslims? When did we have the last thread about "Fix the Harlem-no-go-zone already!!!111"? Or does Harlem count as valid cultural diversity?