Iceland is probably a better choice because it is of extreme strategic importance for NATO forces due to its particular location. It is unlikely that the USA would use brute force against Iceland and stir hate against themselves...
Or Russia - not neutral but more likely to support a technology that the US government combats. And strong enough to resist threats. A country that is strong enough to protect Snowden is strong enough to protect Bitcoin.
Russia? common...
The country where journalist disappear because they write something against Putin? Where if you criticize him you have 100% more chances to die in a tragic accident ?
If Snowden was russian you wouldn't have heard of him , just in a local paper about how somebody died of "overdose".