Amongst the "jewels of the CIA," the most secret, the deepest, the most compartmentalized operations and that, de facto, violated the supposed limits established for covert operations, we find from attempts on the Head of State´s life to actions of psywar. All these terrorist action will be seen in The Cuba Project, which subsequently would take codified name of Mongoose, the most spectacular and tenebrous plan of covert operations that an American administration has ever carried out against the Cuban Revolution. Mongoose meant the decline of the chosen Gods to avenge the defeat of the Assault Brigade 2506 at the Bay of Pigs.