We are part of a symbiotic relationship with something which disguises itself as an extra-terrestrial invasion so as not to alarm us.
There are more than 4000 landing trace cases from around the world.
I've seen UFOs, and Loch Ness - I've been to Loch Ness a few times looking for Nessie, and that's also a beautiful place to be.
If you think that UFOs will come and save you, don't be fooled. The Nazis invented UFOs.
UFOs: The reliable cases are uninteresting and in the interesting cases are unreliable.