A book classified by the CIA for more than 50 years contains a shocking theory about how the world will end. 'The Adam and Eve Story,' written by former US Air Force employee, UFO researcher and self-acclaimed psychic Chan Thomas, was written in 1966 but its publication was halted by the agency. It was quietly declassified in 2013, at least in part, but remained hidden in the CIA's database — until now. In the book, Thomas claims that every 6,500 years, a major disaster on the scale of the Biblical 'Great Flood' strikes the Earth. While experts debate the exact...