Nothing out of the ordinary. This tit for tat has been occurring, on both sides, for decades. I worked Naval intelligence in the late 70's early 80's and we all did it. Just now we have more and quicker access to happenings being made public. I had photos of our planes flying next to a Russian civilian airliner. Imagine that today. I'm only concerned when one side ratchets up the rhetoric and uses it for political purposes at home.

Side note: the press published a military report that the Russians had flown near to one of our military planes the other day. If the photo shown was the occurrence, well then, I am not happy with my team, so to speak. The "infringing" Russian was a bomber (possibly Intel equipt). But why and how would it, a Tupolov quad turbo prop, catch up to a top of the line US fighter?