http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2001/11/04/wcia04.xml
I expect a riot from the cat lovers we have on the forum.In one experiment during the Cold War a cat, dubbed Acoustic Kitty, was wired up for use as an eavesdropping platform. It was hoped that the animal - which was surgically altered to accommodate transmitting and control devices - could listen to secret conversations from window sills, park benches or dustbins.
Victor Marchetti, a former CIA officer, told The Telegraph that Project Acoustic Kitty was a gruesome creation. He said: "They slit the cat open, put batteries in him, wired him up. The tail was used as an antenna. They made a monstrosity. They tested him and tested him. They found he would walk off the job when he got hungry, so they put another wire in to override that."
Mr Marchetti said that the first live trial was an expensive disaster. The technology is thought to have cost more than £10 million. He said: "They took it out to a park and put him out of the van, and a taxi comes and runs him over. There they were, sitting in the van with all those dials, and the cat was dead."