I guess someone figured out that a cold war world was better militarily for everyone, than the post cold war world of terrorism, and US dominance in every corner of the planet.
And, what happens to the Open Skies Treaty? Or is that going into the bin?
And what possibly do the Russians have to gain from conducting such activity, from a military standpoint? Obviously, not much. How about politically? Is this in response to the missle shield the US is building in Poland?