Who closed the Semipalatinsk test site

The film was created by the public fund "Polygon-August 29" Dedicated to the 90th anniversary of Keshrim Boztaevich Boztaev. Keshrim Boztaev is a Soviet and Kazakh statesman and public figure. Known as the sender of an anti-nuclear secret cipher message to M. S. Gorbachev, which became one of the first open protests against nuclear weapons tests at the Semipalatinsk test site.
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Видео Who closed the Semipalatinsk test site канала Mikhail Shemelin