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Related Clues:
- Grp. concerned with SIGINT
- Org. with many code breakers
- Contract to protect trade secrets: Abbr
- Govt. org. with a forerunner known as the Black Chamber
- Subj. of some WikiLeaks docs
- Hush-hush govt. gp
- Org. concerned with secrets
- Confidentiality contract: Abbr
- Government intel grp
- Org. with 1-Across
- Org. whose middle letter stands for "Security"
- Confidentiality document, and a word in this clue rearranged
- Classified org
- Org. that tries to prevent leaks
- Confidentiality contract inits