Lucy Ash asks if the authorities can end the rule of gangs and guns in Rio de Janeiro.
Brazil is booming economically and growing in confidence on the world stage, but in the city of Rio de Janeiro law and order have been turned upside down.
Gangs run the prisons and ruthless militias - often made up of former police officers - control many shanty towns, killing with impunity.
Lucy Ash asks if the authorities can end the rule of gangs, guns and greed.
- Christmas Eve 2009 12:32GMT
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