Watch

Room 641a

05/19/08 | 4m 3s | Rating: NR

When an NSA agent showed up at AT&T headquarters, technician Mark Klein didn't think much of it. But later, he noticed a secret room — and uncovered an infrastructure suggesting that the government was copying all traffic going through AT&T's Internet backbone. FRONTLINE's "United States of Secrets: Privacy Lost" premieres Tuesday, May 20 at 10 p.m. on PBS.

FacebookRedditGoogle ClassroomEmail
Funding for FRONTLINE is provided through the support of PBS viewers and by the Corporation for Public Broadcasting. Major funding for FRONTLINE is provided by the Ford Foundation. Additional funding is provided by the Abrams Foundation; the John D. and Catherine T. MacArthur Foundation; Park Foundation; and the FRONTLINE Trust with major support from Jon and Jo Ann Hagler on behalf of the Jon L. Hagler Foundation, and additional support from Koo and Patricia Yuen.

Related Stories from PBS Wisconsin's Blog

Red banner with FRONTLINE in white text.

FRONTLINE schedule updates for July 2025

Red banner with FRONTLINE in white text.

FRONTLINE schedule updates for July 2024

A journalist wearing a helmet and a jacket labeled 'PRESS' walking through a fog-covered, devastated landscape filled with discarded tires, broken wood, and debris. A bare, prominent tree stands amidst the mist, and remnants of a fence can be seen in the background.

‘FRONTLINE’ executive producer Raney Aronson-Rath speaks on the creation, impact of award-winning film, ‘20 Days in Mariupol’

Family sitting on a couch from behind, watching television together in a living room illustration.

Check Out PBS Wisconsin’s Top Streaming Programs of 2020

PBS Wisconsin Honors Female Trailblazers

Falsettos musical

Celebrate Pride Month with PBS Wisconsin

Donate to Sign Up

Make your membership gift today

Activate Account

Only for new users: Activate Passport using your code or email address

Sign in to Passport

Already a member?
Look up my account

Need some help? Go to FAQ or visit PBS Passport Help

Need help accessing PBS Wisconsin anywhere?

Need help accessing PBS Wisconsin anywhere?