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
That's a normal workday for the CIA at the peak of the Cold War. Apparently getting dosed with acid was something of an occupational hazard in the '50s if you worked for the CIA which might explain some of their more unusual operations.