I sommeren 1962 blev han sendt til Cuba for at indlede drøftelser med Fidel Castro om frigivelsen af 1.113 fanger i kølvandet på Svinebugtaffæren
In the summer of 1962, he was sent to Cuba to discuss with Fidel Castro the terms, of the release of 1,113 prisoners held after the Bay of Pigs invasion. He had secured the release, of 9,703 men, women and children.