Castro Revenge Plot, Soviet Embassy Contact, and CIA Delays Revealed in Final JFK Assassination Files

Newly declassified U.S. intelligence documents reveal that Fidel Castro may have retaliated against President John F. Kennedy for a CIA-backed assassination plot by deploying agents to kill the president—a claim first relayed by Washington insider Edward P. Morgan and now detailed in government files from the late 1960s.

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According to a memo dated 1967, Morgan claimed to receive information from a trusted source who said Castro, upon learning of U.S. plans to assassinate him, “immediately ordered a retaliatory plot” to kill Kennedy. 

The documents suggest that Lee Harvey Oswald may have been selected by Cuban operatives for this mission, allegedly operating out of Mexico City.

Separate surveillance transcripts from CIA wiretaps and photos from the Soviet Embassy in Mexico City show that a man identifying as Oswald contacted Soviet staff and asked about previous meetings with Consul Valeriy Kostikov—alleged to be a KGB officer specializing in assassinations (Dept. 13). This meeting occurred just weeks before JFK was shot in Dallas.

However, the CIA did not alert the FBI until eight days later, and only after further internal deliberation. A 1977 internal CIA memo defended the delay, claiming Oswald’s identity wasn’t initially verified. 

Yet House Select Committee investigators would later question this account, citing signs of internal obstruction.

The same tranche of files includes FBI documents from 1968 that flagged Soviet contacts of unnamed Americans following MLK’s assassination—alerts that were logged but not followed up. 

These cases reveal how potentially explosive foreign leads were either dismissed, delayed, or deprioritized during the most critical moments of Cold War-era assassinations.