Superhuman Tech? Most Americans Fear the Worst

A majority of Americans are worried about scientific advances aimed at enhancing humans' natural abilities, according to a new survey from the Pew Research Center. In the survey, released today (July 26), researchers got people's opinions on three emerging medical technologies: gene editing to reduce a baby's risk of disease, brain chip implantations to make people smarter, and synthetic blood to improve athletic performance. The survey included a nationally representative sample of about 4