For the Common Good

We don't have satisfactory answers to questions that ask what we must share with our neighbor for our common good and the rights we retain in the process. Yet such answers will be the legacy of our age. The Web extra at http://youtu.be/U0piYSt35YU is a video segment in which author David Alan Grier expands on his Errant Hashtag column, in which he discusses how the idea of "smart cities" makes more sense than the idea of "smart homes."