638 ways to kill Castro – Poison pills, toxic cigars and exploding molluscs

Knowing his fascination for scuba-diving off the coast of Cuba, the CIA at one time invested in a large volume of Caribbean molluscs. The idea was to find a shell big enough to contain a lethal quantity of explosives, which would then be painted in colours lurid and bright enough to attract Castro’s attention when he was underwater. Documents released under the Clinton administration confirm that this plan was considered but, like many others, did not make it far from the drawing-board. Another aborted plot related to Castro’s underwater activities was for a diving-suit to be prepared for him that would be infected with a fungus that would cause a chronic and debilitating skin disease.