Quote Originally Posted by Canadian news report
The bugs take the form of minute receiver-transmitters hidden in hollowed-out coins, which are slipped to the contractors at airport money-changing kiosks at Canadian airports. (..) While the range of a coin transmitter is small, it is capable of storing microfilm or a coded message. These can be retrieved by pressing a spot on the coin face to open the coin.
And the coins are supposedly retrieved by pick-pockets?

As the CSIS lady said, the Chinese must be huge James Bond fans.