Powerful technologies like deep data, AI and quantum computing should be introduced into society carefully, IBM CEO Ginni Rometty declared in opening remarks at CES. "These tools are so powerful they will solve some of the most enduring problems — like food safety, waste," she said, "but like all powerful tools, we've got to usher them in safely into society." In order for those technologies to thrive, trust and security will be necessary, Rometty observed. "A competitive differentiator for all … will be trust."