In 1977, Barbara Walters interviewed Cuban leader Fidel Castro in a nearly five-hour session that became one of the most memorable moments in broadcast journalism. Walters pressed Castro on sensitive topics like political prisoners, press freedom, and U.S.-Cuba relations—prompting him to call it his toughest interview ever. She also toured Cuba with him, gaining rare insights into the country. The interview aired on ABC News and remains a defining moment in Walters’ career. | History In Pictures