www.historydaily.org/operation-acoustic-kitty-not-the-cias-most-purrfect-plan
www.allthatsinteresting.com/acoustic-kitty
www.unredacted.com/2010/03/05/document-friday-acoustic-kitty/
www.oregonlive.com/books/2019/05/how-the-cia-tried-to-train-cats-to-spy-on-the-russians-the-strange-true-story-of-acoustic-kitty.html
www.history.com/news/cia-spy-cat-espionage-fail
https://en.wikipedia.org/wiki/Acoustic_Kitty
Declassified CIA Project "OAK" super secret deep black eyes only training facility: