During and after (for a while), the Gorbachev era opened Russia's UFO files. Here are a few interesting examples...

 https://youtu.be/j4za7ZsS3WQ 

Perestroika (/ˌpɛrəˈstrɔɪkə/; Russian: перестройка) was a political movement for reform within the Communist Party of the Soviet Union (CPSU) during the late 1980s widely associated with CPSU general secretary Mikhail Gorbachev and his glasnost (meaning "openness") policy reform.

RR