Scan Faces, Not E-Mail: “More extensive background checks when applying for a job or renting a home aren’t so troubling, but more surveillance by law-enforcement agencies of e-mail and phone calls isn’t such a good idea. Those are just some of the results of BusinessWeek Online’s recent interactive poll, “Personal Freedom vs. National Security.” Over the course of three weeks, 1,344 of our readers responded to this poll — which, having used a self-selected sample, isn’t a scientific survey by any means.” Business Week