Memoir by Fidel Castro 's sister , Juanita , says she worked for CIA . Comment: Cooperated with CIA between 1961 and 1969 ; left Cuba in 1964 for Miami . The Cuban government had no immediate response to the publication of the book , Jorge Bolanos , chief of the Cuban Interest Section in Washington , told CNN en Español on Monday . Agreed to help on condition she did not do anything violent against her brothers .
Memoir by Fidel Castro 's sister , Juanita , says she worked for CIA . Comment: Cooperated with CIA between 1961 and 1969 ; left Cuba in 1964 for Miami . Agreed to help on condition she did not do anything violent against her brothers .