Thirdly, we may be dealing with more than one species of alien, and not all may be at the same technological level. In the books, I ran across at least one story someplace where a person claimed they were miraculously cured as a result of some sort of UFO encounter.
Just a few starter points there to ponder, discuss, whatever ... 
Ufology
There are good aliens after all.
One case I know of is Bernadete's, who was cured from Chagas disease by an alien
BTW - I know Denise Slater, her parents and her sister. We lived in the same building for a while. Her father was mine's army colleague and friend. The went to the military academy (Agulhas Negras) together. They are serious people. The pdf for the whole interview are here:
Denise-interviewed_by_Brent_Raynes.pdf
Denise-interviewed_by_Brent_Raynes_Part_1.pdf
Denise-interviewed_by_Brent_Raynes_Part_2.pdf
...Denise Slater: Now there’s one story of him that really fascinates me. I had told Bob Pratt and he did not
know what to do with it. In Bob’s book he wrote about the deaths in Brazil caused by the UFOs. But in the
story I am about to tell you is how an UFO gave back life, and that really puzzled Bob Pratt. He was just
overtaken by it. This is in my grandfather’s book, and it was a very big thing in Brazil at the time. It was in
all the news everywhere. It was a huge thing in the press at the time that it happened...
...But to make the long story short: he went to the hospital and against the advice (of course) of all of the
doctors he gets Bernadete out of there. She was given no more than two or three days more to live,
according to the doctors. She was dying. He got her out of the hospital and he took her to kilometer 19 on
the road of Unai with his group and he asks Bernadete, (because she knew about all of his work, his
research and his UFO sightings) “Do you have the courage for this, Bernadete?” And she says, “Yes.” “Do
you want to be saved by them?” She says, “Yes.” So even though she could barely walk she decided to go.
My grandfather receivedthe telepathic message of the day that he had to go there with her. He brought her
there. An UFO comes and it lands near them. It may have been 1 or 2 miles away, I don’t know the details.
But from the craft comes out an alien surrounded by a blue light. He walked with this cloud of light around
him. ...It looks like a cocoon of blue light and he ordered (telepathically to her) for Bernadete to walk
toward him. She walked toward that creature as it walked toward her. My grandfather was seeing from a
distance, and so were the other people in the group. I don’t know how many or who, but they all see the
shape. There was a human shape to it, but he was just surrounded by this blue light and he has this device
that looked like a huge syringe. Everything was blue. He telepathically sent the message to Bernadete,
“This will hurt, but it will heal you.” So he asked for her left arm and he put this injection of blue light
inside of her arm, and she said it was horrible pain, and she didn’t move. This light went inside her. She
walked away. My grandfather met her and the alien walked back to his craft and took off. She was taken
back to the hospital. Two days later the tests of her heart showed that it was back to normal. Her heart had
shrunk and it was back to normal.
She’s alive to this day, and if you want to ask her you any questions I have her phone number. I will talk to
her when I go to Brazil in July. She’s the only case of “spontaneous healing” from Chagas disease alive in
the world, and she was in all of the newspapers, TV and news at the time (in the late 70's). It was a huge,
huge thing. They were in the national news every night for many, many, many weeks. She is the only
living case of healing, and not only healing but doing so in two days. So the doctors know she left the
hospital for two days and she came back and her heart had shrunk back to normal.
