Spy org. (3)

I think it could be either:

cia

nsa

(Other definitions for cia that I've seen before include "Famous American intelligence agency, advises President" , "American agency concerned with Intelligence" , "American spies." , "Famous intelligence agency in US" , "US intelligence organisation" .)

I've seen this clue in the USA Today, the Universal, the King Feature Syndicate, The New York Times, the LA Times and The Star Tribune.

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