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FRONTLINE

Room 641a

4:03

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.

Episodes of FRONTLINE211

FRONTLINE

The Fantasy Sports Gamble

An investigation with The New York Times into fantasy sports and online sports betting.

54:11

FRONTLINE

Supplements and Safety

An investigation into the hidden dangers of vitamins and supplements.

54:11

FRONTLINE

Netanyahu at War

FRONTLINE traces Benjamin Netanyahu's rise to power and his relationship with the U.S.

1:54:12

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Clips of FRONTLINE384

FRONTLINE

"There Is No Other Alternative"

Senior officials tried to warn President Bush about Nouri al-Maliki. Here's what happened.

1:45

FRONTLINE

Life in Baghdad

A surprising glimpse into the everyday lives of ordinary young Iraqis.

4:05

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Previews of FRONTLINE210

FRONTLINE

"Death by Fire 2" - Preview

Did Texas execute an innocent man? FRONTLINE reinvestigates Cameron Todd Willingham's case

0:31

FRONTLINE

"Ebola Outbreak" - Preview

FRONTLINE reports from inside the deadliest Ebola outbreak on record.

0:30

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