The NSA program reaches into homes and businesses across the nation by amassing information about the calls of ordinary Americans — most of whom aren’t suspected of any crime. This program does not involve the NSA listening to or recording conversations. But the spy agency is using the data to analyze calling patterns in an effort to detect terrorist activity, sources said in separate interviews.

“It’s the largest database ever assembled in the world,” said one person, who, like the others who agreed to talk about the NSA’s activities, declined to be identified by name or affiliation. The agency’s goal is “to create a database of every call ever made” within the nation’s borders, this person added.

Now more than ever, DONATE TO THE EFF!!!

The Electronic Frontier Foundation (EFF) on Wednesday filed the legal briefs and evidence supporting its motion for a preliminary injunction in its class-action lawsuit against AT&T. After asking EFF to hold back the documents so that it could review them, the Department of Justice consented to EFF’s filing them under seal — a well-established procedure that prohibits public access and permits only the judge and the litigants to see the evidence. While not a party to the case, the government was concerned that even this procedure would not provide sufficient security and has represented to the Court that it is “presently considering whether and, if so, how it will participate in this case.”

EFF’s evidence regarding AT&T’s dragnet surveillance of its networks includes a declaration by Mark Klein, a retired AT&T telecommunications technician, and several internal AT&T documents. This evidence was bolstered and explained by the expert opinion of J. Scott Marcus, who served as Senior Technical Advisor for Internet Technology to the Federal Communications Commission from July 2001 until July 2005.

The internal AT&T documents and portions of the supporting declarations have been submitted to the Court under a tentative seal, a procedure that allows AT&T five court days to explain to the Court why the information should be kept from the public.

“The public deserves to know about AT&T’s illegal program,” said EFF Legal Director Cindy Cohn. “In an abundance of caution, we are providing AT&T with an opportunity to explain itself before this material goes on the public docket, but we believe that justice will ultimately require full disclosure.”

The NSA program came to light in December, when the New York Times reported that the President had authorized the agency to intercept telephone and Internet communications inside the United States without the authorization of any court. Over the ensuing weeks, it became clear that the NSA program has been intercepting and analyzing millions of Americans’ communications, with the help of the country’s largest phone and Internet companies, including AT&T.

“Mark Klein is a true American hero,” said EFF Staff Attorney Kurt Opsahl. “He has bravely come forward with information critical for proving AT&T’s involvement with the government’s invasive surveillance program.”

In the lawsuit, EFF is representing the class of all AT&T residential customers nationwide. Working with EFF in the lawsuit are the law firms Traber & Voorhees, Lerach Coughlin Stoia Geller Rudman & Robbins LLP and the Law Office of Richard R. Wiebe.

For the notice of motion for preliminary injunction:
http://www.eff.org/legal/cases/att/NotMot.pdf

For the motion to lodge under temporary seal:
http://www.eff.org/legal/cases/att/MotionReSealing.pdf

For more on EFF’s suit:
http://www.eff.org/legal/cases/att/