Well unidentifiable means
A) Secret Government Project
or
B) Alien craft

Seems to me the government has special areas for testing their secret projects. Conspiracy theorist? Not really... but to pretend such things don't happen would be niave I think.

And the universe is such a large place. I can't believe we're the only ones occupying the space.

And I don't blame them for only observing seeing as we're a "shoot first, ask questions later" type of society.