This is only the first step in a mechanism for attempting to outlaw cryptocurrency for the benefit of large banks. You can already track the ledger of any block chain network, (it's actually FAR easier to track than paper money, but it's just that it's anonymous when using shady accounts that aren't very secure in the first place) so what about spending your time actually finding where the money is going instead of making a "threat assessment" that will do nothing more than create a stigma around a technology that is also being used to shift power from banking cartels to the lower and middle classes in more than just a handful of countries, and could be used for elections to make them exponentially more secure? This isn't just cynicism here, you don't have to take my word for it. I urge anyone reading this to do their research on block chain technology and try to fully understand it, and you will see the potential it has. The current state of the world and the effect this technology could have if embraced makes this a monumentally important issue.