This is not a definitive answer, but Alexandr Solzhenitsyn's A Day in the Life of Ivan Denisovich was published during this time with Khruschev's express permission. If you've never read it, read it! It's only 100 or so pages, and it is about a single day in a Soviet Gulag --something Solzhenitsyn knew about firsthand and would eventually document in his opus Gulag Archipelago. It is frankly dynamite. No one reading it would think the system is just. The fact that Khruschev said it was okay to put that out into the world is baffling. Years later --when Khruschev was gone-- Solzhenitsyn refused to accept his Nobel Prize for Literature in person for fear he would not be allowed back into the country. He did eventually accept exile in the United States in order to continue writing. Khruschev's leniency was a rare and surprising blip in Solzhenitsyn's life.