VICE News meets with Sergio Berni, Argentina's national security secretary, to talk about Operation Rosario, the largest anti-drug operation ever carried out in the country.In Rosario, Argentina's third most populated city, slums known as villas miserias are beset with poverty and crime. As drug use has grown among the city's population, it has spawned a violent drug war that is little known outside of the country.Subscribe to VICE NewsFollow VICE News on TwitterLike VICE News on Facebook
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