In New Zealand, gangs have become an increasingly serious problem which is now threatening to replace the Maori culture, as more young Maori turn to a life of crime to find a sense of belonging.<br /><br />Although some blame the criminal networks for destroying the indigenous community's ethnic culture, the Maori say it is their disadvantaged background that pushes them to violence.<br /><br />Al Jazeera's Tony Birtley has the story.