Your Definition?
Of course there are slums in all countries and bad areas etc... however, how would you define a bad area or a "Ghetto" I know how I think of it as. Many people think of such places in different way's. To me these places scare me because of fear of getting shot, stabbed, harassed, robbed etc...
Not by one specific race of people, mainly by people who live or roam around these area's. At least that's how I think of it as because it has happened to me in these very area's. They say the things you fear the most have already happened.
I have never been to slums outside North America and am curious if it is the same way. And I don't mean "slums" or "ghetto's" brought on by war or natural disaster because that just brings up a whole new subject. An example would be this image in the center of Mumbai call Dharavi.