"Algorithms will scan images to predict if someone is acting dangerously.

Interconnected with Facebook recognition, phone tracking and CCTV networks, this tech may help intelligence agencies identify you in real time and follow you.

That might catch a few people - but I doubt it.

And it's already being used: during the 2011 royal wedding, known activists were pre-emptively arrested for 24 hours, based on what they'd said on Facebook.

Once you link all the technologies, you very quickly get to an Orwellian state."

Senior researcher, Blavatnik Interdisciplinary Cyber Research Center, Tel Aviv University

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