When did the NSA become public?

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Tags

1. #public
2. #document
3. #existence
4. #nscid
5. #october
6. #classified
7. #established
8. #council
9. #president
10. #intelligence
11. #national
12. #truman
13. #memorandum
14. #revised
15. #security
16. #directive
17. #known
18. #formally
19. #since
20. #agency