The US response should be interesting. Not sure how they could/would technically enforce sanctions. Edit: Yes, I understand the banking tie in. I was thinking more of mining, and trading other cryptocurrency (monero maybe) for "bit-rials".
All a cryptocurrency adds is a public record making that task easier and the hokum used to sell it may make the NSA’s job easier if people believe it’s anonymous. Setting up a separate one also means there’s less benign traffic to hide behind.