Ana Montes was released from prison today. As the headline in this Washington Post piece alludes, I hadn't heard of her. This was written ten years ago. It's a remarkable story, would make a decent film.
https://www.washingtonpost.com/sf/feature/wp/2013/04/18/ana-montes-did-much-harm-spying-for-cuba-chances-are-you-havent-heard-of-her/