"Then he asked in German (the only language that we ever spoke): "Ist die Sowjetregierung eine faschistische Regierung? - Is the Soviet Government a fascist government?"… I sat silent for some moments. Then I said: "Ja, die Sowjetregierung ist eine faschistische Regierung - the Soviet Government is a fascist government"… Krivitsky turned for the first time and looked at me directly. "Du hast recht," he said, "und Kronstadt war der Wendepunkt - You are right, and Kronstadt was the turning point." (pp. 459-460)"
January 1, 1970
https://en.wikiquote.org/wiki/Whittaker_Chambers