Dr. Laurence Dunegan attended a medical meeting on March 20, 1969. The speaker was Dr. Richard Day who told the audience to turn off their recorders and not take notes because he was going to tell them what was going to happen. "Some of you will think I'm talking about Communism. Well, what I'm talking about is much bigger than Communism!"
Dr. Dunegan realized the message was important, so he tried to remember what was said, and made notes later. This is one of the most important tape sets ever recorded.