GCHQ operated a secret surveillance project called Optic Nerve which captured images from millions of Yahoo! webcam chats made between people suspected of no crime.
Leaked documents dated from 2008 to 2010 reveal that Yahoo! was chosen because it was known to be used by “GCHQ targets”. The NSA was also involved, providing software to identify video traffic online and make screenshots searchable once intercepted.
The images were collected from 1.8 million Yahoo! accounts around the world to conduct experiments in facial recognition and to detect criminals or terror suspects who were using multiple accounts to hold webcam chats .... http://www.telegraph.co.uk
