http://www.mcall.com/news/local/all-a1_nsasidemay12,0,6505391.storyMay 12, 2006
Can feds make numbers add up?
By Jon Van
Special to The Morning Call
Connecting the dots is difficult, but for homeland security agents, the real trick is figuring out where the dots are and which ones need connecting.
That analogy may be at the core of the federal government's interest in keeping tabs on all the telephone calls Americans make to each other every day. Government agents reportedly hope that computers can sift through the mountains of phone data to extract nuggets of information revealing terrorist plotters.
Only within the past decade has a subset of computer science called link mining even become available to attempt such a daunting task, though some researchers believe that even the most powerful computers will never deliver the answers that the government seeks.
Congressional leaders were demanding answers from the Bush administration Thursday about a specific type of connecting-the-dots activity: whether the National Security Agency had collected extensive phone call records from America's three largest telecommunications carriers, and whether the privacy rights of individuals had been violated.
Behind those questions is the arcane science of using super-powerful computers to mine data of all types for information.
''It's a massive data problem, but you can do it,'' said Kris Hammond, Northwestern University professor of electrical engineering and computer science. ''If it were impossible to get specific answers to specific questions from a huge database, Google couldn't exist.''
More at link...
Jon Van is a reporter for the
Chicago Tribune, a Tribune Publishing newspaper.
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