Sir - I am not a pilot…not even close (but have driven a few planes)…anyways…I dont trust the Govt in the least, even more so with the current leadership. I do however have some friends who are “high up”…one being the actual man who flew the F14 in the movie Top Gun (one of them - currently he is an MD). My father owned a company who made parts for the Space Shuttle as well as other craft such as the SR71. I live in a city where Aerospace is huge and top secret things are common place at companies such as Hamilton / Sundstrand, Woodward Governor and on and on (and I have friends in low places). My best friend is a crew chief at PNAS for the Blue Angels…and another friend works ATC at a local airport. I have asked…and got the same response (even when highly intoxicated on their part)
While it was semi-easy to keep “top secret” things top secret years ago (the F117 a great example, but the owner of Testors model company, oddly in the same city did get into trouble in the late 80’s)…in the modern day of the internet and whistle blowers it is just implausible. If the craft you question were all military I would be on your side - but, the level of cover that would be needed for the CIA to pull of publicly owned aircraft on open runways to put out these purported spystreams…someone would have talked.
Does big brother listen to our phone calls and read Facebook? Sure as hell they do…do they pay United to spread a chemical in the air…nope.
And your link does not work…must be “the man” man…