Obama would have been shooting already. Putin is showing forbearance.
Right, that is only because the Sochi Olympics haven't taken place yet. Think Hitler and his Olympics prior to WWII: he was planning for war but made nice because, you know, you got to make the régime "look good" for world-wide propaganda purposes.
Besides, Putin isn't dumb, he doesn't want a repeat of the Russian Olympics the West boycotted because Russia invaded another sovereign country.
But don't be fooled... Putin's thugs are in Kiev and the Ukraine:
It has been learned and widely reported that many of these so-called Ukrainian "Riot police" are in point of fact not Ukrainians at all, but Russians who have been shipped into the country by Putin's government, with the support and cooperation of Ukrainian President Yanukovich, for the express purpose of keeping Mr. Yanukovich in power at all costs. Think of them as his personal “Praetorian Guard".
This article will tell you what you need to know about the police throughout the Ukraine:
http://www.foreignpolicy.com/articles/2014/01/24/ukraines_public_enemy_number_one_the_police