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Italian-American journalist and trade-union activist Carlo Tresca, a leading public opponent of the Mafia infiltration of unions, was assassinated in New York City.

Trade union

Organisation of workers with common goals

A trade union or labor union, often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, such as attaining better wages and benefits, improving working conditions, improving safety standards,…
Source: Wikipedia (CC BY-SA)

Carlo Tresca

Italian-American and newspaper editor, socialist, trade unionist, and labor activist

Carlo Tresca was an Italian-American dissident, newspaper editor, orator, and labor organizer and activist who was a leader of the Industrial Workers of the World during the 1910s. He is remembered as a leading public opponent of fascism, Stalinism, and Mafia infiltration of the…
Source: Wikipedia (CC BY-SA)

Mafia

Type of organized crime enterprise

"Mafia", as an informal or general term, is often used to describe criminal organizations that bear a strong similarity to the original Mafia in Sicily, to the Italian-American Mafia, or to other organized crime groups from Italy. The central activity of such an organization…
Source: Wikipedia (CC BY-SA)