America’s UFO obsession has been reignited by a newly declassified FBI memo from 1967. Among a batch of 162 unsealed files, the document reveals the story of a woman who claimed she met an extraterrestrial being in human form. She detailed secret missile battles over Africa and sightings in Antarctica, but her most terrifying claim was her fear for her own life—warning federal agents that those who saw what she saw had a habit of "dying mysteriously."