Royal Society president calls for re-think on GM food ban

One of the UK's leading scientists has called for a re-think on the ban on genetically modified foods.

The Royal Society President Sir Venki Ramakrishnan says people have misunderstood the science of GM and it is "time to set the record straight".

Opponents say the technology is untested, and the ban should remain.

Palab Ghosh reports.

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