MAFIA. CAMORRA. 'NDRANGHETA. The Sicilian mafia, known as Cosa Nostra, is far from being Italy's only dangerous criminal fraternity. The country hosts two other major mafias: the camorra from Naples; and, from the poor and isolated region of Calabria, the mysterious 'ndrangheta, which has now risen to become the most powerful mob group active today. Since they emerged, the mafias have all corrupted Italy's institutions, drastically...