Perhaps no project being developed as a result of the Sept. 11, 2001, terrorist attacks has caused such intense public scrutiny and debate as the Defense Advanced Research Projects Agency's Total Information Awareness (TIA) system. . .
Perhaps no project being developed as a result of the Sept. 11, 2001, terrorist attacks has caused such intense public scrutiny and debate as the Defense Advanced Research Projects Agency's Total Information Awareness (TIA) system.

TIA, in theory, will enable national security analysts to detect, classify, track, understand and pre-empt terrorist attacks against the United States by spotting patterns using public and private transaction and surveillance methods.

The system, parts of which are already operational, incorporates transactional data systems, including private credit card and travel records, biometric authentication technologies, intelligence data and automated virtual data repositories. Its goal is to create an "end-to-end, closed-loop system," to help military and intelligence analysts make decisions related to national security, said Robert Popp, deputy director of DARPA's Information Awareness Office (IAO), which is heading up the effort.

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