At the beginning of the twenty-first century, breathtaking changes in technology are posing stark challenges to our constitutional values. From free speech to privacy, from liberty and personal autonomy to the right against self-incrimination, basic constitutional principles are under stress from technological advances unimaginable even a few decades ago, let alone during the founding era. In this provocative collection, America's leading scholars of technology, law, and ethics imagine how to translate and preserve constitutional and legal values at a time of dizzying technological change. "Constitution 3.0" explores some of the most urgent constitutional questions of the near future. Will privacy become obsolete, for example, in a world where ubiquitous surveillance is becoming the norm? Imagine that Facebook and Google post live feeds from public and private surveillance cameras, allowing 24/7 tracking of any citizen in the world. How can we protect free speech now that Facebook and Google have more power than any king, president, or Supreme Court justice to decide who can speak and who can be heard? How will advanced brain-scan technology affect the constitutional right against self-incrimination? And on a more elemental level, should people have the right to manipulate their genes and design their own babies? Should we be allowed to patent new forms of life that seem virtually human? The constitutional challenges posed by technological progress are wide-ranging, with potential impacts on nearly every aspect of life in America and around the world.