http://www.knoxville.com/kns/politics/article/0,1406,KNS_356_840058,00.html
You are what you eat? Federal agents are tracking suspects tied to
the Sept. 11 strikes through supermarket club cards that may give a
hint of ethnic tastes. "Time was, this data was so disorganized
nobody could make sense of it, but not anymore. They're looking for
people based on their supermarket tastes," says consultant Larry
Ponemon, head of the Privacy Council business consortium. "Trouble
is, there's so much bad data out there, and how do your know if
someone eats like a terrorist?" he asks.
Also (and source of above):
http://slashdot.org/article.pl?sid=01/10/09/0033206
What Do You Buy At The Grocery ... Punk?
Peace.
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Karsten M. Self