China is spending alot of time rolling out its digital currency among it's populace. What is difficult to trace about it? It's literally a public ledger...? If you institute a state controlled wallet, not only can you control flow, color of money, etc. but you can perfectly see the data in real time which is a tremendous improvement over the current infrastrucure. You can actually answer questions like, how much does the average citizen spend a month on XyZ with a simple query among your wallet.

> I'm sure Putin himself is setting up a Coinbase account as we speak...

You are cut off from swift and other internationally accepted banking measures. How do you get foreign currency into your nation and how do you transfer payments internationally? Crypto.