The Unnatural Selection of Our Species

In 2018, the first genetically-modified children were born. Now we have the tools to reshape the future of our species. With a pair of genetic scissors known as CRISPR, we can potentially select the traits of our children, or avoid ageing, or cure disease. But with that ability comes a new set of risks, forcing us to face hard ethical questions. Torill Kornfeldt has travelled all over the world to meet the people driving this research forward. She has visited fertility clinics in South Korea, on