When you are talking about Italy you can't say Cosa Nostra you gotta say Sicilian Mafia or just mafia since that's the only MAFIA in the world.
Cosa nostra is Italian-American organized crime

They just picked up a very heavy hitter in the Camorra not too long ago and he allegedly turned rat. Most of the poorest towns or villages are in Caserta a province next to Naples.
Casal di principal comes to mind.

They say the n'drangheta is getting more powerful especially in Canada especially in the drug trade.

I'm sure someone on here will give you ur answer. In the meantime change cosa nostra to mafia. Ciao.