Those "explanations" worked in the 60's when people were a little more gullible about such things, and less questioning of government intentions and motives. Now, I believe most such UFO's are some prankster or, if not, a USAF test flight of some new undisclosed experimental aircraft..............
Or the toilet seat from Mir.
Nowadays, it's not likely to be some prankster as a moonbat or a TROP disciple.