RUSSIAN BIOWARFARE R&D BASED ON JAPANESE WORK. “The closed city of Sverdlovsk had been a … military-industrial complex since World War II. A major nuclear accident … in 1957, resulting in (massive) spread of radioactive dust. The biological weapons facility … was built after World War II, using documentation captured in Manchuria from the Japanese germ warfare program.”
http://en.wikipedia.org/wiki/Sverdlovsk_Anthrax_leak