History Declassified

Sealed In Silence - The Secrets of Unit 731

Option 3 Media

In the frozen outskirts of Manchuria stood a facility erased from official history. Between 1932 and 1945, thousands of men, women and children were subjected to vivisection, plague infection, frostbite trials and other experiments in the name of progress.

When the war ended, the evidence was burned — and the data sold.
This investigation from History Declassified exposes the origins of Unit 731, the ideology that fuelled it, and the secret bargain that allowed its architects to walk free.


Narrated with forensic detail and quiet gravity, it asks a question that still haunts modern science: what is knowledge worth, if bought with human life?

🎙️ History Declassified is a production of Option 3 Media (O3M)
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