Five Families: The Rise, Decline, and Resurgence of America's Most Powerful Mafia EmpiresGenovese, Gambino, Bonnano, Colombo and Lucchese. For decades these Five Families ruled New York and built the American Mafia (or Cosa Nostra) into an underworld empire. Today, the Mafia is an endangered species, battered and beleaguered by aggressive investigators, incompetent leadership, betrayals and generational changes that produced violent and unreliable leaders and recruits. A twenty year assault against the five families in particular