CaribWorldNews, MIAMI, FL, Tues. Oct. 27, 2009: The sister of Fidel and Raul Castro has revealed in a stunning memoir that she in fact worked against her brothers by collaborating with the Central Intelligence Agency.

Juanita Castro in her memoirs entitled `Fidel and Raul, My Brothers, the Secret History,` said she used the code named Donna and helped foes of Fidel Castro flee the island following the Cuban revolution in the early 1960s.

In her memoirs, as told to Mexican journalist Maria Antonieta Collins, Ms. Castro said she initially supported her brothers in the struggle but quickly became disenchanted after Fidel Castro began to increasingly persecute opponents and turned to communism.

She said she was recruited to be a CIA operative by her friend Virginia Leitao da Cunha, the wife of the Brazilian ambassador to Cuba. She said she agreed to work for the CIA under the noses of her brothers on the condition that she was not asked to participate in any violent acts against them or any other member of their government.

Ms.  Castro, 76, went into exile in Mexico in 1964 before emigrating to the U.S. and has remained a firm critic of communist rule in Cuba. At the time of her arrival in Mexico she had called a press conference and announced that she had defected from Cuba. `I cannot longer remain indifferent to what is happening in my country,` she said. `My brothers Fidel and Raúl have made it an enormous prison surrounded by water. The people are nailed to a cross of torment imposed by international Communism,` she said then.