We live in an age of awesome technological potential. From nanotechnology to synthetic organisms, new technologies stand to revolutionize whole domains of human experience. But with awesome potential comes awesome risk: drones can deliver a bomb as readily as they can a new smartphone; makers and hackers can 3D-print guns as well as tools; and supercomputers can short-circuit Wall Street just as easily as they can manage your portfolio. One thing these technologies can't do is answer the profound moral issues they raise. Who should be held accountable when they go wrong? What responsibility do we, as creators and users, have for the technologies we build? In A Dangerous Master, ethicist Wendell Wallach tackles such difficult questions with hard-earned authority, imploring both producers and consumers to face the moral ambiguities arising from our rapid technological growth. There is no doubt that scientific research and innovation are a source of promise and productivity, but, as Wallach, argues, technological development is at risk of becoming a juggernaut beyond human control. Examining the players, institutions, and values lobbying against meaningful regulation of everything from autonomous robots to designer drugs, A Dangerous Master proposes solutions for regaining control of our technological destiny. Wallach's nuanced study offers both stark warnings and hope, navigating both the fears and hype surrounding technological innovations. An engaging, masterful analysis of the elements we must manage in our quest to survive as a species, A Dangerous Master forces us to confront the practical -- and moral -- purposes of our creations.