Want to know how to keep that killer dog robot from opening the door to your bedroom and eating your face? Screwing is the answer, and one with a left hand thread most likely. Researchers at MIT are busily figuring out how to put the other 50,000 people out of a job at Foxconn's Innolux factory. How to teach a robot to screw - Humans easily outperform machines when it comes to tightening and loosening screw fasteners. The future of manufacturing and recycling may depend on changing that.