Well, unfortunately, it is all very controversial.. You see, the Crimean referendum was boycotted by about 15% of the Crimean population (of which the dominant part were the Crimean Tatars loyal to the central power in Kiev). As a result, there's not a slim chance for the Crimean Tatar terrorirsm [supported by whom?] becoming a reality.. Besides, the US is the leader of NATO and guess who just missed their chance to deploy their troops closer to Russia.. Why won't they be upset? Also, Russia and the EU already almost got their peace with each other [and the stocks went up]. Both Russia and the EU are economic rivals of each other but also guess of whom?