That's an old trick...

Here's another great selection of vintage spy gear from the 'Threat Level' group at Wired - including such classics as 'The Shoe Bug', 'The Pipe Pistol', and the 'Pigeon Spy Cam'.

Full article and pictures via Wired's 'Threat Level':

www.wired.com/threatlevel/2011/03/cia-spy-tools