The sand-drawing robot and other tech news

BBC Click's Marc Cieslak looks at some of the best technology news stories of the week including;

  • A security researcher discovers wearing juggalo-style clown make-up could fool some facial recognition systems

  • A robotic cockroach is developed by researchers at Harvard

  • And the robot that can draw in the sand, acting like a beach printer

See more at Click's website and @BBCClick.