The IMF has recommended that all Central banks should issue their own cryptocurrencies. Indeed, they are looking at using Block Chain to keep track of taxes and to enforce negative interest rates with cryptocurrencies which would allow them to impose negative interest rates whenever necessary. With adopting cryptocurrencies that governments would control, we will come one step closer to losing all our freedom. Central banks could enforce negative interest rates with cryptocurrencies and thus people would find their accounts just garnished. You could not hoard cash and withdraw it from banks. They are also looking at this as a way to manage a banking crisis stopping runs on banks. This technology is also causing those in the hunting of tax revenues to lick their lips.
The issuance of digital currencies would allow central banks to remain in control of the money supply far more so than they are today. Sweden is moving forward and there we see that the use of cash is rapidly disappearing.
Cryptocurrency technology would allow also the taxman to just cometh and take whatever he desires in the midst of the economic crisis we face. The Central Banks would be able to maintain greater control over the creation of money through the process of leverage (bank lending).
While policymakers in Canada have already researched the idea, other highly socialist governments are doing the same. The IMF head Christine Lagarde called on central banks to focus on issuing digital currencies. All of this attention is being applied as the fear of rising interest rates in the marketplace is really beyond the control of central banks. They are also in fear of what to do in a banking crisis that is inevitable in Europe. It is true that central banks can control the short-term rates, but long-term rates are established by the free market. This is why the Federal Reserves was buying in 30-years bonds hopefully to impact the long-term rates which the Fed cannot directly control.
The best thing to do now is to hoard paper US dollars if you are particularly in Europe.