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How to Build...

Series 1

Episode 3: Britain's Secret Engineers

Duration: 1 hour

on BBC Two Wales

Documentary series. Workers at British defence contractor QinetiQ reveal a handful of their secretive projects, including robots to defuse roadside bombs. Show more

BBC Two Wales

About BBC Two

BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.