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Multistate Anti-Terrorism Information Exchange
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<p>The Multistate Anti-Terrorism Information Exchange Program, also known by the acronym MATRIX, was a U.S. federally funded <a href="/facts/Data_mining_system/AH53q5ac">data mining system</a> originally developed for the <a href="/facts/Florida_Department_of_Law_Enforcement/g4ptynom">Florida Department of Law Enforcement</a> described as a tool to identify terrorist subjects. </p><p>The system was reported to analyze government and commercial databases to find associations between suspects or to discover locations of or completely new "suspects". The database and technologies used in the system were housed by <a href="/facts/Seisint/Wu7lgrWK">Seisint</a>, a Florida-based company since acquired by <a href="/facts/LexisNexis/Wu7lgrWK">LexisNexis</a>. </p><p>The Matrix program was shut down in June 2005 after federal funding was cut in the wake of public concerns over privacy and state surveillance. </p>