Fascinating piece on the EU's €4.5 million investment into "smart" lie detector tests at airports in Hungary, Greece and Latvia. 

These tests will use artificial intelligence (AI) to detect micro-expressions that may indicate deception.

iBorderCtrl say that their technology aims "to empower border agents and to increase the accuracy and efficiency of border checks". This could be used to assist with routine questioning or to identify travellers engaging in criminal activity.

Time will tell whether automation of this kind strikes the right balance between security, convenience and privacy. 

The anthropomorphisation of "sceptical" AI border guards raises some interesting questions. AI tools are intended to become more accurate over time as they are fed more data. A key challenge will be determining whether the technology will detect supposed lies because it is functioning well or because AI bias has been created by unbalanced data sets.