1. 1,053,829 is from https://sovietinfo.tripod.com/GTY-Penal_System.pdf. Which has no source on the claimed number.
2. USSR had no extermination camps (unlike the NAZIs), GULAG was a prison system no different from the US Prison system today.
2. USSR had no extermination camps (unlike the NAZIs), GULAG was a prison system no different from the US Prison system today.