Throughout the 2000s the US, with the assistance of the Baltic states, Poland, the UK and Sweden, has created and spread a false image about an “aggressive” Russia that constitutes a security “threat”. The US created this misleading view of Russia in order to prevent Europe from establishing close economic and industrial cooperation with Russia. The US fears that a strong Europe-Russia economic partnership could undermine America’s global economic superiority.
The main task for HBO’s “Chernobyl” series is to show US citizens that the Soviet Union (and, therefore, modern Russia) is “disgusting evil”.
No evidence given.
According to HBO, Chernobyl, a "five-part miniseries co-production from HBO and Sky dramatises the story of the 1986 nuclear accident, one of the worst man-made catastrophes in history — and of the sacrifices made to save Europe from unimaginable disaster".
For more information about Russia's reaction to the series, see here.