Spy used pen nibs dipped in lemon to write invisible messages to his counterparts. He relayed his secrets in between lines of ...
Burn after reading.” For German agent Karl Muller, that advice would have really helped. Muller, a spy who masqueraded as a Russian shipbroker and ...
A Russian engineer is accused of leaking confidential technical data from ASML, NXP, TSMC, and GlobalFoundries to Russia, ...
A desiccated 110-year-old lemon that played a key role in espionage history is one of the star attractions of a London ...