Sovereign Mining... perfect for one of Dee Hock's Chaords.
Decentralize the authority and centralize the information.

IF a sovereign government adopted a crypto-currency, other than BTC, as a standard Bitcoin would take a serious hit in market share. In fact if BTC turns out to be a long term viable currency some government will do this.

It would be an ideal play for a small country that wanted to gain market share in central banking.