Robots are in our homes, our factories, on battlefields and in hospitals. Some are smarter than us, some are faster. Some are here to help us, others not. Science fiction is filled with malign machines which rise against humanity. In the Why Factor this week, Mike Williams asks if we have reason to fear the machines we are creating.

Insert: “I, Robot” 2004 Twentieth Century Fox. Director Alex Proyas, based on story by Isaac Asimov

Insert: "Astro Boy"- Ep.1: The Birth Of Astro Boy (in English) © Nippon Television 1982

(Photo: Robots in Suits © Shutterstock)