Dystopian visions of spies — technological or human — betraying a cowed population to authoritarian regimes are rife in literature. We have not quite reached the level of surveillance depicted in Margaret Atwood’s The Handmaid’s Tale — but this could be how it starts: a global catastrophe, followed by enhanced governmental control. The latest controversy relates to contact-tracing apps. Different jurisdictions have developed different models, creating a plethora of privacy concerns. Read more