In 1942, Asimov gave us the Three Laws of Robotics. Now they've been updated

Asimov was essentially an optimist, but he realised that future AI devices, and their designers, might need a little help keeping on the straight and narrow. Hence his famous Three Laws, which have influence in science and technology circles to this day. Now, almost 80 years later, legal academic and artificial intelligence expert Frank Pasquale has added four additional principles. He's given RN's Future Tense podcast the lowdown. Here's what you need to know.