TC-
There is literature available online now, that was not available in 1963-4. Information not available to the WC, or anyone, probably.
You can read James Woolsey's book, Operation Dragon: Inside the Kremlin's Secret War on America. I do not think the book is compelling, but it does raise issues. Woolsey is a former CIA director, so he has some street cred.
You are smart guy, so do a lot on online searches for the US Ambassador to Mexico, Thomas Mann, and the State Department staffer in Mexico Charles Thomas, and what happened to them re the JFKA. Basically, they both lost their careers for merely wanting to follow leads into Cuba. Not comforting.
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Gus Russo is a prominent investigative journalist and author who has specialized in the JFK assassination, specifically advocating for a theory involving Cuban intelligence (G2) and Lee Harvey Oswald.
His research in this area was featured in a 2006 German documentary and his later books.
Key Documentary: Rendezvous with Death: JFK & the Cuban Connection
Release/Background: This German documentary, released in 2006 (German title: Rendezvous mit dem Tod: Warum John F. Kennedy sterben musste), was written by Gus Russo and directed by filmmaker Wilfried Huismann.The G2 Theory: The film claims that the Cuban secret service (G2) organized the assassination of President Kennedy as retaliation for the Kennedy brothers' attempts to assassinate Fidel Castro (Operation Mongoose).
The G2 Theory: The film claims that the Cuban secret service (G2) organized the assassination of President Kennedy as retaliation for the Kennedy brothers' attempts to assassinate Fidel Castro (Operation Mongoose).
Oswald's Role: According to the documentary, Lee Harvey Oswald was an unstable, self-styled pro-Castro marxist who was "contracted" or encouraged to kill JFK by Cuban agents after he made contact with them in Mexico City.
Evidence Cited: The film features interviews with former Cuban G2 spies, KGB files, and archival research from Mexico. A key source was former Cuban G2 official Oscar Marino, who claimed Castro "got Kennedy before Kennedy could assassinate the Cuban leader".
Key Finding: Russo argues in the film that Oswald, while acting as the lone gunman, was encouraged by Cuban Intelligence, who viewed him as a "disposable" asset to protect Cuba.
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You can find the above film on Youtube. It is a fun film to watch anyway.
Re the Katzenbach memo?
I would find more comfort if the Katzenbach memo said something to the effect: "No matter where the chips fall, the most important client is Truth, and finding out, and then disclosing, everything about the JFKA."
Instead, on Nov. 25 1963 Katzenbach was concerned about how to sell the LN theory to the public.
I have reservations about the LN JFKA theory.