Self-confessed gadget geek Barney Harwood hosts a Blue Peter special all about gadgets and technology. In San Francisco Barney reports on a bionic suit which is changing people's lives. Also, discover how to control a CBBC game using a banana and some modelling clay, learn about a cat ear head band which reads and reacts to your brainwaves and some 6-legged robots that fire discs at each other. There's also a tour around the biggest gadget show in the world, direct from Las Vegas.
