Sandman,
Actually I just checked that out. It turns out the eavesdropping was attributed to "security organs". I read that and summarized it as NKVD. I did not realize it did not exist at that time. My mistake. 
But in any case, you can do a search on the quote. It will come up as I said.
What strikes me as particularly suspect is your comment that his comments were taped by the NKVD in 1965 and 1966. The NKVD did not exist in those years.

But in any case, you can do a search on the quote. It will come up as I said.
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