For 10 points, name this Italian organized crime syndicate.
Methods such as torture and hostage-taking were employed against this organization in a campaign led by the "Iron Prefect" in the 1920s. Protests against this organization were staged following the death of Carlo Alberto dalla Chiesa, one of the reasons why 475 of its members were tried in the Maxi trial. In the 1960s, this organization spread northward thanks to groups like the 'Ndrangheta   (in-DRAHN-gay-tah) . Operation Husky was assisted by members of this organization thanks to the connections of (*)  Charles Luciano. Giovanni Falcone was killed by this organization for prosecuting its members, who follow the  omertà code. It began in 19th-century Sicily with groups such as the Stidda and Cosa Nostra. For 10 points, name this Italian organized crime syndicate.
Methods such as torture and hostage-taking were employed against this organization in a campaign led by the "Iron Prefect" in the 1920s.
Sicilian  Mafia  [or the  mob ; anti-prompt on  Cosa Nostra ]