Soviet cover-ups

Formerly a salt lake in Central Asia

On 26 April 1986, reactor 4 of the Chernobyl Nuclear Power Plant, located near Pripyat, Ukrainian SSR, Soviet Union, exploded. With dozens of direct casualties and thousands of health complications stemming from the disaster, it is one of only two nuclear accidents rated at the maximum severity on the International Nuclear Event Scale, the other being the 2011 Fukushima nuclear accident. The response involved more than 500,000 personnel and cost an estimated 18 billion rubles. It remains the worst nuclear disaster and the most expensive disaster in history, with an estimated cost of US$700 billion.

Soviet mass murder of ca. 22,000 Poles in several parts of European Russia, including in the Katyn forest, which became a pars pro toto name for the whole massacre

nuclear disaster

1962 killings

fatal Soviet launch pad disaster

1979 accidental release of anthrax in the Soviet Union

form of censorship

assassination attempt made upon Leonid Brezhnev

sciences and research that were banned by the Societ Union

smallpox outbreak from a Soviet bioweapon test

radioactive contamination of Lake Karachay

Soviet (Ukrainian) Major-General who carried out the Katyn Massacre in World War 2.

euphemism for execution in Stalin's Soviet Union