What did Stalin use the secret police for?

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Tags

1. #known
2. #police
3. #political
4. #under
5. #great
6. #genrikh
7. #stalin
8. #activities
9. #order
10. #yagoda
11. #secret
12. #nikolai
13. #joseph
14. #ordinary
15. #repression
16. #beria
17. #included
18. #period
19. #purge
20. #yezhov
21. #carrying
22. #during
23. #lavrentiy
24. #public