Boissevain reports on Fidel Castro. During a banquet held by the Egyptian ambassador, Castro speaks to Swiss Ambassador Masset of a decision to nationalize the former building of the U.S. embassy, currently in use by the Swiss embassy acting as U.S. representatives. Castro is noted as having "the air of one who is boasting to a trusted friend about how he has crossed an opponent." Boissevain thinks it best to keep on Castro's good side and requests an illustrated work of the Netherlands to be sent as a gesture of goodwill.

Boissevain writes in continuation of the previous cable regarding Castro's desire for a mediator in an agreement with the United States. The Swiss or Czech ambassadors are offered as alternatives by Boissevain. Castro also notes that the Cuban debt to the Soviet Union is far to large, although he still wishes to continue revolution, creating this impasse between Cuba and the United States.

Boissevain writes of a conversation Fidel Castro had with his wife, namely about how some ideals cannot translate into reality. Castro is interested in pursuing an agreement of some kind with the United States, and seeks to use Boissevain as the middle man. Boissevain is hesitant about any kind of deal with Castro, and asks for instructions on how to proceed.

The cable reports on Castro's speech, which does not offer much in news. The President of Brazil Goulart has instructed Ambassador to Cuba to investigate on the "offensive weapons."