An unbelievable mission to train cats to spy on Russians has been revealed.

Like something out of a spoof James Bond film, the CIA spent five years and £10m training a moggy to spy for them.

The CIA is America's spy agency in other countries.

Acoustic Kitty

They hoped the cat, rigged up with microphones and an antennae in its tail, could pad around unnoticed and listen in on secret spy conversations.