For an open mind, it is not hard to imagine
that highly advanced civilizations would be very interested in observing human development just as we observe wildlife and even other human habits in our own environment.
There is, however, an overwhelming amount of verifiable data and credible witness testimony available to anyone willing to seek it out. It is simply a question of motivation.
Contrary to popular belief, there is evidence to suggest that some of what are called “UFOs” are extraterrestrial spacecraft. Much of the evidence, and to much chagrin, is not in the form of a “flying disc” or an alien body, no.
The number of documented general sightings in the modern age numbers approximately 120,000, of which 20,000 have been described as landings. Numerous surveys and opinions polls conducted over the last 50 years consistently report that between 5%-10% of the US population has seen what they consider to be a UFO. According to the United Nations, since 1947, approximately 150 million people have been witnesses to UFO sightings throughout the world.
Map of sightings in North America