The power of gene editing

Technologies such as genetic modification and ‘CRISPR’ will cure hereditary diseases, produce disease-resistant crops and enable the breeding of malaria-free mosquitos. But advances bring ethical and practical dilemmas. Genetically modified food is banned in the EU, and doctors worry that screening for genetic diseases may pave the way for more controversial uses, such as creating so-called designer babies. This film looks at the risks and rewards of gene editing.