Perhaps this article will explain how the phrase, "no-go zone" came about and why. In the article, the author states that another term should have been used.
A Question of No-Go Zones in Europe
If what the author states is true, then there could be a bit of truth because the police enter those areas only in force.
So now you're down to a "bit of truth" based on an article written by a man that tried to claim that the OKC bombing was just the beginning of an offensive by Islamic fundamentalist", Maybe you missed it, it was in all the papers, but the OKC bombing was carried out by a home-grown terrorist who was as far from an Islamic fundamentalist as you could get. But, never you mind. You just go ahead with your Fox News apologist duties as best you can.