Series 1 Episode 3
First Broadcast:

At the centre of the exciting new revolution in genetic engineering lurks a taboo many scientists are reluctant to face: the question of race and intelligence.

As genes, race and intelligence combine to form one of science's most explosive cocktails, a storm of controversy is gathering that threatens the progress of research.

Key new research is presented in the programme, but are we prepared to act on this research? More importantly, should we act on it?

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Genetic research is forcing leading scientists to look again at racial differences. This series finds out what modern genetics can tell us about the differences between population groups.