No. There is no evidence to suggest that NASA has done this. No other country has any well-documented evidence of UFOs. It is very unlikely that NASA has been able to control the evidence in all other countries.
There is no confirmed evidence in favour of this.
There are none in existence. You can only find images that people claim to be aliens or UFOs. So far, there has never been any evidence to support their claims.
There is no credible evidence for this.
It would be reasonable to assume that they don't, given that the evidence for actual UFOs are, to put it mildly, lacking. Although the absence of evidence is not the evidence of absence, the only rational conclusion we can draw is that UFOs don't exist, and thus could not directly affect a community.
I guess the strongest evidence for not believing in UFOs would be that they haven't landed and introduced themselves. For some people to believe they would have to see the beings.
No.
Not very good I'm afraid. In all the decades that UFOs have been sighted or reported, no credible evidence has been put forward that UFOs are from anywhere but the planet earth, either produced by human hands or by human imaginations. None whatsoever.
yes duhh
UFOs The Best Evidence Ever Caught on Tape - 1997 TV was released on: USA: 28 July 1997
Gary McKinnon.
There is no evidence that proves any of them are even extraterrestrial for certain. There is no Evidence that proves any of them are not extraterrestrial for certain.
Personally, I ponder dubiously evidence of UFOs.