I firmly believe that Snowden is being sought of trumped up charges by the NSAKGB. What is his pig crime? Exposing the NSA for illegally and unconstitutionally data mining information from hundreds of millions of citizens?
NSA loves to collect and hold all the communications, financial information, secrets of everyone living in America. See how NSA squeals when their secrets are exposed. When the tables are turned. NSA is a typical Federal Gov't jobs program and bureaucratic empire. The NSA could concentrate on America's real enemies for 10% the cost and 10% the number of Federal drones working there
Or, to destroy its very self image as a constitutional republic, to sow doubt & despair into the hearts of every patriot, and to signal the world that the USA is a prison state, one that anyone interested in self determination would be well to avoid, or escape?
Option 1 merely entails detaining Snowden and accessing his records. Option 2 is even more straightforward: put Snowden on a plane straight to DC.
As long as Putin allows Snowden refuge, he's contributing to a potentially stronger America over the long-term. Why would he be interested in that? Handing Snowden over to DC would be like the Germans sending Lenin to Russia. It would destroy the will of America as the last vestiges of civil rights were quickly eliminated.