[O]bama’s position is irrelevant, notes Professor Cohen. "While Washington is insisting that Russia invaded Crimea, the facts indicate that Russia was acting according the law."
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“What’s happening inside Ukraine is scary and it can provoke a war, a horrible war."
Stephen F. Cohen. Professor emeritus at New York University and Princeton University
http://voiceofrussia.com/news/2014_04_03/US-is-responsible-for-escalation-of-crisis-in-Ukraine-Stephen-Cohen-1822/