https://www.theregister.co.uk/2018/06/14/the_eyes_have_it_deepfakes_outed_by_unblinking_stares/

In the last year or so convincing fake videos known as DeepFakes – the product of deep learning-driven facial image manipulation – have been condemned as a threat to democracy, or what's left of it.

The fear is that invented events represent the sort of fake news that can alter elections and affect civic engagement. Imagine the havoc that could be caused by a video of a prominent politician repudiating democratic norms – and no one is sure whether it reflects reality.