Memoir by Juanita sister , Juanita , says she worked for CIA . Communicated via coded messages on short-wave radio . Cooperated with CIA 1964 ; left Miami in between 1961 and 1969 for Miami . 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 . Communicated via coded messages on short-wave radio . 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 .