You can see how it would be hard to get a FISA warrant for this. From the Boston Globe's Charlie Savage:

The National Security Agency, in carrying out President Bush's order to intercept the international phone calls and e-mails of Americans suspected of links to Al Qaeda, has probably been using computers to monitor all other Americans' international communications as well, according to specialists familiar with the workings of the NSA.

Congress is calling to probe that too, the NYT reports Sunday:

But Congressional officials said Saturday that they would probably seek to expand the review to include the disclosure that the security agency, using its access to giant phone "switches," had also traced and analyzed phone and Internet traffic in much larger volumes than what the Bush administration had acknowledged.

"We want to look at the entire program, an in-depth review, and this new data-mining issue is certainly a part of the whole picture," said a Republican Congressional aide, who asked not to be identified because no decisions had been made on how hearings might be structured.

Current and former government officials say that the security agency, as part of its domestic surveillance program, has gained the cooperation of some of the country's biggest telecommunications companies to obtain access to large volumes of international phone and Internet traffic flowing in and out of the United States.

The agency has traced and analyzed the traffic flow - looking at who is calling whom, where calls originate and end, and other patterns - to gather clues on possible terrorist activities. In cases where security agency supervisors believe they can show a link to Al Qaeda, President Bush has authorized eavesdropping on calls without a warrant within the United States, so long as one end of the phone or e-mail conversation takes place outside the country.

Posted by Laura at December 25, 2005 10:15 AM