The Pentagon's contractor, Torch Concepts, acquired more than 1 million passenger records from JetBlue and then augmented the data with sensitive information such as Social Security numbers and family size, which it purchased from Acxiom, a mammoth data-aggregation company. Torch then tried to determine if massive amounts of data would allow its technology to distinguish between typical passengers and terrorist profiles.
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http://www.wired.com/news/privacy/0,1848,60885,00.html?tw=wn_tophead_3
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