THE US Department of Defense is lab-testing technology that could make it easier automatically to sift through a vast pool of private communications, including international telephone phone calls, in a similar manner to using an Internet search engine. THE US Department of Defense is lab-testing technology that could make it easier automatically to sift through a vast pool of private communications, including international telephone phone calls, in a similar manner to using an Internet search engine. The technology, called "SemanticForests", is a software program that an alyses voice transcripts and other documents in order to allow intelligent searching for specific...