Oak Ridge, Tennessee, was founded as a secret nuclear research facility for the Manhattan Project. My mother's family lived in East Tennessee already, and my grandfather got a job as a day laborer in Oak Ridge. He didn't ask questions, because people who asked a lot of questions didn't last long there. (via Digg)
If you're interested in the history of Oak Ridge, you might want to read the story of John Hendrix, a mystic from East Tennessee who died in 1915. The story is not quite as believable as the video above, but it is interesting.