RFID

Available for over a year

At the beginning of the Cold War, musical inventor Leon Theremin managed to bug the US embassy in Moscow. The ingenious device he used is a predecessor of a humble technology that surrounds us every day: the Radio-Frequency Identification tag. Tim Harford asks if RFID is introducing an 'internet of things'. Or are its glory days behind it? Producer: Ben Crighton Editor: Richard Vadon