Sorry for going of subject for a second here but wow...this is the first time i heard of this...
(from the link above)

"This AM I spent the morning at ARE [Edgar Cayce’s Association for Research & Development] with the UFO Club listening to speakers who have personally experienced ET contact since early childhood – very confirming to each other’s stories.
One man at the meeting read an “Announcement to the Nation” Kennedy was to give the day after he was assassinated – which Governor Connolly who was riding in the car with Kennedy reading his speech note cards, now blood stained, put under lock and key until after his death. After experts authenticated the handwriting and blood stains, the speech has now been made public and it was announcing the presence of ETs here to help us!!!"

Of course this could be BS unless someone can confirm this story