The tools in a spy's arsenal are more varied than you might think. But they all come under one name: Tradecraft. In our ninth round of insights from the world of espionage, Rhiannon Neads looks back on lessons drawn from intrepid cyber-cops, nuclear double-dealers, crafty codebreakers and more. From SPYSCAPE, the HQ of secrets. A Cup And Nuzzle production. Series producer: Joe Foley. Produced by Alex Burnard. Music by Nick Ryan. Learn more about your ad choices. Visit megaphone.fm/adchoices