Surveillance

China’s spy balloon: Inflatable eyes in the sky have been used for centuries
The biggest AI breakthroughs of the last year
Inventions that are fighting the rise of facial recognition technology
Computer scientists explain how to stop smart devices from spying on you 
Singapore to give all residents wearables for contact tracing
Apple and Google join forces on coronavirus tracking project
Contact-tracing apps could help end coronavirus lockdown
New app uses location data to track the coronavirus
Hey Alexa, quit eavesdropping 
The anti-facial recognition fashion statement