Cyber Spies: computer hacking and the state.
Dominic McCafferty explains how he uses infrared cameras to study stress levels in birds.
What will advances in CCTV cameras, drones and Google Glass mean for visual privacy?
Steve Hewlett and guests discuss the significance of the erosion of privacy today.
Aleks Krotoski asks whether we still have the option to remain faceless.
Facial Recognition: Who's watching you?
Scientists installing cameras in Antarctic penguin colonies – Penguin Watch is online
Tom considers how we protect our personal space through design.
We Are the Cops author Michael Matthews discusses different policing in the US and the UK
Adam discusses the ethics and privacy issues surrounding facial recognition programmes.
Are machines better than humans at identifying faces?
What powers does the so-called 'Snoopers' Charter' give to the intelligence services?
Bridget Kendall and guests explore the shadowy world of tracking and surveillance.