A covert economic strike
“…In August 1962, the CIA learned that a Cuban cargo ship carrying 80,000 bags of brown sugar — each weighing 200 pounds — was en route to the USSR. The vessel was scheduled to make a brief stop in Puerto Rico for minor repairs, requiring part of its cargo to be offloaded. Seizing the opportunity, the CIA launched a clandestine operation to taint the shipment.
“Through a clandestine operation, which was not detected and is not traceable, we were able to contaminate 800 of these bags of sugar,” a declassified memo to General Edward Lansdale, then the Pentagon’s deputy assistant secretary for special operations, revealed. The chemical used was reportedly a denaturing agent, strong enough to render the entire shipment “unfit for human or animal consumption in any form.”…”

https://www.newstarget.com/2025-03-25-cias-secret-war-on-soviet-sugar-revealeddeep.html