“Disclosure” has become a cult word. It shouldn't be, since all it means, technically, is to reveal something. But the new wave of alien conspiracy theorists have made “disclosure” into a teasingly ...

Are the disappearances or deaths of eleven US scientists really linked in a nefarious plot? Or just a conspiracy theory with roots in a bizarre broadcast that rocked Britain in the 1970s?

Steven Spielberg's 1977 classic tapped into anxieties about the US government hiding UFO information from the public. It holds the key to the director's new film, Disclosure Day.