Upon being arrested, Allegra disclosed his membership and testified about Mafia activities.

He gave the American public a firsthand account of Mafia activities in the United States.

However, there also is some Mafia activity by the Leone and Sindacco families.

Mafia activity was recorded in St. Louis as early as the mid-1890s.

There was little Mafia activity in the eastern half of Sicily.

Mafia activity fell as clans disbanded and mafiosi went into hiding.

After that, I don't know of any Mafia activity of today.

The exposure of the global scale of Mafia activities was one of his principal achievements.

Mr. Chiodo also testified about Mafia activities at that trial.

He will also be aware of the effects the ban had on Mafia activity within the United States, where, eventually, prohibition was withdrawn.