I like Typhoid's remarks on buzzing. During decennia of Cold War, both NATO and Warpac did it thousands and thousands of times.
A single Fencer boring in, not using ECM or whatever, in the full knowledge of the capacities of the US vessel can in my opinion hardly be considered a threath. In case of real trouble they would have used stand off weaponry, heavy ECM and a LOT more planes.....
As for Putin, it's Hitler and the Sudeten Germans all over and the frightening thing is that we really don't know if he is really in control of all the thugs calling themselves militants........ I wonder what his idea's are on the Baltic states, now our NATO allies...