Now let suppose for a minute that all is good BC they are staying in international air space (true)
Now let's suppose that in doing so  they travel just close enough to Merritt a response in which they got.
And the whole while are taking and recording the time it takes for military response plus the type of response.(one day fighter jets next day none)
Now I as a kid remember a story of Peter and the wolf (anyone else)  Peter yelled wolf,wolf,and the whole village came .(no wolf)
The next day same thing .(no wolf)
But eventually the cry of wolf didn't even get a response from the villagers and there was a wolf.
Oh what a tangled web we weave when we practice to deceive.