Full title: Operation Acoustic Kitty: The CIA spent about $15 million surgically implanting a microphone in a cat’s ear, a transmitter under its skin, and an antenna through its tail to spy on Soviet conversations
Full title: Operation Acoustic Kitty: The CIA spent about $15 million surgically implanting a microphone in a cat’s ear, a transmitter under its skin, and an antenna through its tail to spy on Soviet conversations
They did. Project got canceled because of problems with the training and that cats was killed by environmental stuff like cars.