In 1999, there was genuine fear that the 'millennium bug' would cause chaos around the world. The reality was something of a damp squib.
In 1938, Orson Welles convinced Americans that Martians had landed. Or did he?
Phil Tinline explores the history of disinformation - and examines techniques that are back in use today. Based on a Radio 4 documentary.
One of the world's most valuable racehorses disappeared in 1983. Thirty-five years on, Alison Millar finds out what really happened.