Over 4,000 Swedish people have futuristic microchips implanted into their skin to replace credit cards and cash, as Sweden moves toward a cashless society. Only 1% of their economy is notes and coins. At the same time there’s been a dramatic decrease in crime - with only two bank robberies last year compared to 110 in 2008. The chips are inserted into their hands and pioneers predict millions will soon join them as they hope to take it global. The chips, the size of a grain of rice, can monitor their health and even replace key-cards to allow them to enter offices and buildings. The microchips were pioneered by a former body piercer who has hopeful international investors. He said the technology is safe but many fear cybercrime, integration with other systems and illegal data sharing. Users say they’re happy to give up privacy for convenience.