Recently declassified files related to the assassination of John F. Kennedy have unveiled a secret CIA operation in the early 1960s aimed at sabotaging a Soviet-bound sugar shipment. According to the documents, American intelligence operatives contaminated 800 bags of sugar aboard a cargo ship traveling from Cuba to the USSR in August 1962, just months before the Cuban Missile Crisis.
The operation, analyzed by journalist Ben Norton and The Washington Post, was part of the CIA’s covert efforts to undermine Soviet interests. The agency learned that a vessel carrying 80,000 200-pound (90 kg) bags of brown sugar would be making a brief stop in Puerto Rico for minor hull repairs. Seizing the opportunity, CIA operatives clandestinely contaminated 800 bags of sugar, with the aim of spoiling the entire shipment.
Although the agency did not use poison, the sugar was treated with a substance that made it irreversibly bitter. The objective was to make the sugar “unfit for human or animal consumption in any form,” as noted in a declassified document sent to General Edward Lansdale, the Pentagon’s deputy assistant secretary for special operations at the time. The CIA maintained that the contaminant posed no health risks but would leave a persistent “sickly bitter taste” that could ruin consumers’ enjoyment of food and beverages for an extended period.
Beyond its psychological impact, the operation was also expected to cause significant financial damage to the Soviet Union. The declassified file estimated that the USSR could suffer losses ranging between $350,000 and $400,000, a considerable sum in the 1960s.
The ultimate fate of the contaminated shipment remains unclear, as no Soviet records detailing the incident have been discovered. However, the revelation provides further insight into Cold War-era clandestine tactics employed by the United States against both the USSR and its allies.
The operation took place against the backdrop of heightened U.S.-Cuba tensions. Following the Cuban Revolution in 1959, Washington imposed economic sanctions on the island, including a ban on sugar imports. The embargo forced Cuba to seek alternative trade partners, with the USSR stepping in as a key buyer of Cuban sugar. The CIA’s sabotage effort was likely aimed at disrupting this new economic alliance.
