I disagree...countries other than Russia have advanced systems to do as they choose. With Nuclear war clearly accepted as a strong possibility most nations are going to determine how they can protect themselves...one of which is shutting down those sites who stand to fire the most deadly missles...and abundance of.
Do you not think there are those operating in our country who could operate apart from our knowing about? Or even those of our own country co-operating with them?
The one thing that really troubles me about UFO sitings being taken as alien craft is the photos are always old, from years past...blurred and never up to date with todays crisp technology. Further why travel light years to land in some obscure area...these three men had opportunity to present photos and certainly the time frames to capture these. Why were none presented?
In most operational modes, most of the craft reportedly have an ionization layer of air and ionized particles etc. covering their skin which hinders sharp photos.
And that doesn’t even get into other aspects of the technologies which hinder, prevent, preclude sharp photos.
However, there will be relatively sharp photos increasingly surfacing. There are already more on the net than you seem to be aware of.