In reply to krikoman:
> Thankfully we don't tend to have the ghetto mentality in the UK
This is the problem of the political neophyte - a goldfish memory that only lasts for the latest issue, no depth of knowledge or experience.
Of course, in fact, the Northern Race Riots of 2001 were characterised by segregation and ghettoisation. (Hence the notion of Parallel Lives, central to our understanding of what happened).
It gave birth to the whole concept of s-called Community Cohesion, although it's notable that one of the creators of that, Ted Cantle, has now moved away from multi-kulti melting pots to intercultural assertiveness.