Editing Your DNA: The Promises and the Risks

Ever since scientists discovered they could tamper with genetic material, people have questioned whether the technology is too powerful and too dangerous to unleash on the world. Now, just in the last three years, new methods of DNA engineering are so precise, so fast, and so inexpensive, that it’s bringing this technology within reach of more scientists and entrepreneurs than ever before. Given the fraught debate over genetically modified foods, how will society deal with the sci-fi -- like prospects of species-specific bio-weapons, invasive mutant crops, or enhancing genes for qualities like beauty and intelligence?