The FBI's controversial e-mail surveillance tool works about the way the bureau says and generally doesn't "overcollect" evidence, an independent reviewer of the system said. But his remarks failed to calm the fears of privacy advocates. Henry H. Perritt said . . .
The FBI's controversial e-mail surveillance tool works about the way the bureau says and generally doesn't "overcollect" evidence, an independent reviewer of the system said. But his remarks failed to calm the fears of privacy advocates. Henry H. Perritt said in an interview that he had recommended how the so-called "Carnivore" system could be improved, both for efficiency and privacy, but that all-in-all it performed as advertised.

"I think that it's fair to say that it does pretty much what the FBI says it did. For the most part, it does not overcollect," he said Monday.

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