Cnet News reports:

The FBI appears to have adopted an invasive Internet surveillance technique that collects far more data on innocent Americans than previously has been disclosed.

Instead of recording only what a particular suspect is doing, agents conducting investigations appear to be assembling the activities of thousands of Internet users at a time into massive databases, according to current and former officials. That database can subsequently be queried for names, e-mail addresses or keywords. . . .

"What they're doing is even worse than Carnivore," said Kevin Bankston, a staff attorney at the Electronic Frontier Foundation. . . "What they're doing is intercepting everyone and then choosing their targets."

. . . [Bankston said] the FBI is "collecting and apparently storing indefinitely the communications of thousands--if not hundreds of thousands--of innocent Americans in violation of the Wiretap Act and the 4th Amendment to the Constitution."