https://www.politico.com/magazine/amp/story/2017/12/16/pentagon-ufo-search-harry-reid-216111

I fail to see ANY MENTION of the very real possibility that these vehicles are of U.S. origin and the reason the program funding ended was because revealing this program represents a threat to national security.

From the article:

“Was this China or Russia trying to do something or has some propulsion system we are not familiar with?” said a former staffer who spoke with POLITICO on condition of anonymity.

Or, duh … are they of U.S. origin?!

The answer is in Flying Saucers!