In 1965 Charlie Hall entered the Air Force and was sent to Nellis Air Force Base as a weather man. Out on the ranges around area 51 Hall encountered several tall non human aliens. Other air force peers had also seen them from a distance and described a strange sight that appeared to be an iridescent floating horse. Charles got close enough to observe that it was a group of human looking people in iridescent white jump suits riding a anti gravity device about 12 feet off the ground. The people in the middle were hunched over while the person in front was steering, thus giving the impression of a horse. While exploring the area he accidentally discovered a hollow mountain with a hanger that was partially open. During another exploration he saw a whole community of tall whites who have lived among us for centuries. There was a reason that Charles was able to communicate with the aliens and became close than most of the former weatherman at Nellis. He had rescued a little alien girl who was lost on the desert. She had wondered off and was hidden from view by all the tall sage bush in the area. Even though the alien group appreciated Hall, there was always some anxiety when dealing with them. years after his military experiences, Charles started writing about his encounter as a journal. When his wife, Marie, found it and read it, she convinced him to publish it. I had the opportunity of talking with him at length in 2010.
4. Many people would panic. At least that is what those in positions of authority believe. If the general public knew that we had actual treaties and contracts with certain alien races like the tall whites, they would feel vulnerable. Actually, all of he earths military strength combined could not protect us entirely. If the aliens wanted earth they could have taken it over long ago. There are some things they do want that we have and they manage to get what they want.
Update: Someone asked about the tall white's view of Jesus. That is an interesting subject. Charles was/is a devout Catholic. The Tall White Aliens seemed to respect his point of view. They thought it interesting the Charlie prayed for protection when out in the Nevada desert alone. After Charles saved a Tall White little girl who had become lost while playing among the desert sage, he became known as "the teachers pet". He was allowed to roam known occupied areas with a high security clearance. I don't think the Tall Whites subscribe to religion the way we do. They have shown Charles respect and seem to understand his views without necessarily sharing those beliefs. Since Charles was shot by a new comer alien, Pam, it was evident that belief alone could not prevent that type of assault. One can argue that Charles miraculously survived this ordeal where many others might not have. That might be an argument for Divine Intervention. Also, in Viet Nam, Charles was spared certain death during a raid of mortar fire. He has been blessed many times.