Jennifer Doudna - Biochemist

Sarah Montague speaks to biochemist Jennifer Doudna. Crispr/Cas9 is a gene editing tool that has been described as the greatest biological breakthrough in decades. The hopes that rest on it are immense: that it can be used to cure cancer and other intractable diseases, stop mosquitoes carrying malaria, create drought-resistant crops and food that does not rot - even that it can recreate extinct animals. What does Jennifer make of the breathtaking pace of innovation since her discovery and does she fear where it may lead?