Forget NFC, heck forget even plastic. Japan is going for fingerprint currency instead. Almost like a page out of a sci-fi novel, the Japanese government is eying the use of fingerprints to implement not just identification but also payment systems for tourists. This will practically fill in the need for tourists to present passports at hotels and inns as well as the need to use credit cards for purchases. Japan intends this sure to be contentious method as a way to increase the volume of tourists, in preparation for the 2020 Tokyo Olympics and Paralymic Games.