What’s the easiest way to take down a country? And how’s artificial intelligence entering modern warfare? Professor Fredrik Blix is an expert on cybersecurity and he says we must pay attention. He also warns that ‘no sane person on earth have Facebook’. Facial recognition, for example, can be used for good and bad. Chinese police walk around with AI glasses using facial recognition to spot wanted people. The same tool is used to find and bring home missing children. Meanwhile, we let big American companies build databases for facial recognition by giving our faces away online. The question is – what happens when hackers get access to your face and the rest of your data?