Italian Carabinieri show a machine-gun found during a search in downtown Naples November 8, 2006. Italian police arrested 32 people in Naples on Wednesday in the first major security operation since the government took emergency steps to stop a crime wave in the southern city. But there was more violence in the streets, as two men riding in a stolen ambulance shot dead a man believed by police to have Mafia links. REUTERS/Tony Gentile (ITALY)