Excellent move by visa! I am a techie person and like technological advancements in any field. That is one major reason why I'm into cryptocurrencies, based on blockchain tecnology. Current technological advancements make life a lot easier, although it comes with its own challenges, security being an important one. Well, we'll continue to surmount the challenges as they raise their ugly heads. The only cryptocurrency that will have a biometric side to it is humaniq. The humaniq project, backed by humaniq tokens (HMQ) proposes to use the biometrics of facial identification to identify the 2 million unbanked of the world. I strongly believe that the humaniq project will be a game changer in this regard. Here, my fourth post about humaniq, https://steemit.com/humaniq/@maryfavour/humaniq-tokens-listed-on-coinmarketcap-com .