I'm going to talk about the Favelas of Rio De Janeiro in particular here, simply because that's where my experience lies.
Upon arrival in the 'Cidade Maravilhosa' (marvelous city), it's hard not to notice - especially when taking the 'REAL' bus from the airport - the slums that surround the 'jewel' of South East Brasil. These are perhaps the worst of all Favelas in Rio receiving less attention from the Government and police forces. This is in large part due to their being out of sight and touching distance from the hoards of tourists that grace the wavy tiles of the Copacabana and Ipanema strips each year.
Hey asshole! Read some more...