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Facial recognition gates at Manchester Airport were temporarily taken out of use after a couple walked through the scanners after swapping passports. It is believed the pair passed through the gates in Terminal One on the morning of 8 February. The UK Border Agency said they were stopped by the immigration officer supervising the gates afterwards.

Facebook has apologised for the way it rolled-out a new system that recognises users' faces. The social network said that it should have done more to notify members about the global launch. Its Tag Suggestions feature scans photos and automatically picks out existing friends.

Ideas for 91 113 apps

A sophisticated new camera system can detect lies just by watching our faces as we talk, experts say. The computerised system uses a simple video camera, a high-resolution thermal imaging sensor and a suite of algorithms. Researchers say the system could be a powerful aid to security services.

Face recognition technology can be used to gain access to a person's private data, according to a new study. Researchers at Carnegie Mellon University combined image scanning, cloud computing and public profiles from social network sites to identify individuals in the offline world. Data captured even included a user's social security number.