Fort Detrick bought secrets behind the Biological War Crimes of Japanese Unit 731

After World War 2, the U.S. helped cover up the crimes of Unit 731 and bought its biological warfare data for 250,000 Yen, "a mere pittance by comparison with the actual cost of the studies". What other secrets is Fort Detrick hiding from the world?

UNIT 731 ‘Japanese Human Experimentation’

Unit 731 in was a secret biological and chemical warfare research base established in Harbin in 1935 as center of Japan's biological warfare in China and Southeast Asia during WWII. From 1939 to 1945, at Least 3,000 people were killed there, and more than 300,000 people perished due to biological weapons. The retreating Japanese invaders blew up the base to cover their crimes before they surrendered in 1945.

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