I posted about this before.
Yuri Gagarin was one of the good guys in this story. Another was a KGB officer. The villains were Leonid Brezhnev and Dmitry Ustinov.
I can remember when Brezhnev and Ustinov were names known to everybody. However, younger readers may not recognize them, so I included the Wikipedia links. In the grand scheme of human history, they deserve to fall into obscurity.