Like its “cousins”, the Neapolitan Mafia or the Calabrian N’drangheta, Cosa Nostra is one of the most violent networks of organized crime in Italy. For over 150 years, it has controlled a large part of the economy and daily life of Sicily, via the “pizzo”, a racketeering system that brings in a billion euros per year. But the blanket of silence that this criminal organization imposes on the island and its capital, Palermo, is slowly cracking.