Are Soviet passports still valid?

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Tags

1. #issued
2. #personal
3. #still
4. #legal
5. #russian
6. #since
7. #identification
8. #barely
9. #passports
10. #inside
11. #practical
12. #valid
13. #internal
14. #means
15. #country
16. #soviet
17. #though
18. #ceased