EU changes rules on GM crop-growing

Genetically modified crops are planted widely across the Americas.

But in Europe their steady march has been more of a slow crawl. GM crops are still highly restricted within the EU. Only one crop, a type of maize, is grown commercially.

Today, the European Parliament has voted to give individual countries more power to decide whether to plant GM crops. Governments will now be able to restrict or ban their cultivation - even if they've been approved on a wider EU basis.

To discuss this, we brought together Mark Lynas, who used to campaign against GM crops, but now supports them and is a visiting fellow at Cornell University, and Liz O'Neill, a scientist and director of 'GM Freeze' - a group critical of GM.