NSA Expands Databases, Domestic Spying
Five years ago, Congress killed an experimental Pentagon antiterrorism program meant to vacuum up electronic data about people in the U.S. to search for suspicious patterns. Opponents called it too broad an intrusion on Americans' privacy, even after the Sept. 11 terrorist attacks. But the data-sifting effort didn't disappear. The National Security Agency, once confined to foreign surveillance, has been building essentially the same system. A debate is brewing among legal and technology scholars over whether there should be privacy protections when a wide variety of transactional data are brought together to paint what is essentially a profile of an individual's behavior. "You know everything I'm doing, you know what happened, and you haven't listened to any of the contents" of the communications, said Susan Landau, co-author of a book on electronic privacy and a senior engineer at Sun Microsystems Laboratories. "Transactional information is remarkably revelatory."
NSA's Domestic Spying Grows As Agency Sweeps Up Data, Wall Street Journal, March 10, 2008.
