MIAMI — In a consequential ruling Monday night, a Miami federal judge said four major cruise lines with South Florida ties — Carnival, Norwegian, Royal Caribbean and MSC Cruises — engaged in “prohibited tourism” and “trafficking activities” by carrying passengers to Cuba and profiting from the use of Havana port facilities confiscated by the Fidel Castro-led government, the first decision of its kind that could affect similar lawsuits. “By using the Terminal and one of its piers in various ways, Carnival, MSC SA, Royal Caribbean and Norwegian committed trafficking acts,” U.S. District Judge Be…
