Disappointed, is not exactly the same thing as “angry,” or “furious,” nor is it calling for military options. Obama said Moscow sometimes slipped into a Cold War mentality, but pointed out that Russia was cooperative with the United States on many issues. It seems that Obama does not want to upset the Apple cart with Russia which is helpful when it comes to thinks like counterterrorism.
Getting upset with Russia is particularly pointless Russian President Vladimir Putin has made a condition that Snowden not leak any more information while he is in the country. With Snowden in Russia, Snowden is gagged. Angering the Russians is just shutting the door after the horse has bolted.
Washington still wants Snowden, who was in hiding in Hong Kong before flying to Moscow in June, to be sent home to face criminal charges including espionage for disclosing secret American internet and telephone surveillance programmes.