so was putin's offer to eliminate syrian chem weapons a stroke of genius or a miscalculation (like 
this 'think tanker') argues ?
my read is that the author of the article is an uncomplicated 'believer' or a downright halfwit, perhaps both.
i see, without digging too deep, that obama, if not checkmated, is being outfoxed by a much smarter politician. the reason's are self-evident...
-obama, if he ever considered it seriously, can't now execute a military strike for weeks if ever. If he goes to congress again, provided the russians are playing for time, he will be defeated, as the MPs will accuse him of 'not giving peace a chance'...if he leans to striking w/o the congressional approval, he will never be able to justify it by going to congress in the first place, thus striking w/o the congress Ok is highly unlikely.
-if he decides to work with the russians, however difficult it might be, he is risking to lose whatever reputation he had with moderate rebels thus dispiriting their fighting morale. 
- if he plays hard ball with the russians by giving them deadlines, he is destined to fail because he needs a credible military strike option which he, as explained above, does not have. besides, putin has proven being deaf when one talks ultimatums.
- if the us try to work through the un security council, they again will be facing 'nyet', unless the strike option is removed. 
...thus obama, despite all his dreadful toys, has no viable options but playing a second fiddle to this evil vlad.
i welcome any feedback where i got it wrong.