The US government is unable to keep something as simple as its terrorist watchlist in good shape. People are constantly found to be terrorists when in fact, they are not. Imagine what it will be like when they can control your spending via digital currency.
Wait until you are trying to buy food/gas &in a town after the internet and/or power is out. That has happened to me many times ... in north america... in only the last few years. Perfect network connectivity is only a norm in big cities.