With Duncan Campbell.

4: Skywatch

Are Britain's defences as good as they should be? Successive governments have hidden the fact that every major new radar system since 1945 has been a failure. Three separate billion pound projects have gone wrong - in complete secrecy.

Radar was once a great British invention. How well have we done with it since?
Duncan Campbell takes viewers inside the secret control centres which have run Britain's radar defences from the 1940s through to the 1980s - and reports from a fortified new headquarters being built for the 1990s and beyond.
Six months ago the Government had to write off the Nimrod early warning aircraft, with the loss of nearly a billion pounds and thousands of jobs. An
American design is being bought instead. And another billion pounds is now being spent rebuilding the RAF's ground radar defence network. Will everything work properly this time?

Director DENNIS COSGROVE
Producer BRIAN BARR
BBC Scotland
* CEEFAX SUBTITLES