Why Scientists Are Worried About China's 'Gene-Edited Babies'

The scientist He Jiankui who claims to have created the first gene-edited babies has broken his silence and defended his work at a genetics conference in Hong Kong. We hear why scientists are still not convinced.

Also in the programme - the World Chess Championship prepares for "Armageddon" and the President of the Philippines Rodrigo Duterte announces a "Death Squad".

(Photo: Technicians are seen trough a contamination chamber as they work at the DNA research laboratory for gene sequencing. Credit: EPA)