Fear of flying

By Barry Fox Passengers on a British Airways flight recently had a nasty fright when they heard an announcement warning of an imminent crash. A patent from Vidair Avionics of Germany (WO 99/6275) proposes a surveillance system that could avoid people setting off this kind of false alarm and also deter hijackers. Video cameras are hidden throughout an aircraft to watch over sensitive areas. The pictures are fed to a central processor, which stores the images. The processor continually checks for any movement in the sensitive areas, sounding a crew alarm if anything suspicious occurs. At the same time,
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