This was truly an amazing incident, perhaps a smoking gun regarding the validity of ET encounters. I actually wrote an article about this a couple years ago. It was investigated by Dr. John Mack, who at the time was department head of psychiatry at Harvard Medical School, and he concluded that there was no way that all these children were lying. To this day the kids (now adults) still validate their story. I've heard one of them giving a talk about how she received telepathic messages/images from these beings about the state of the planet, and she still remembers it vividly.