FRONTLINE investigates how Silicon Valley feeds the NSA's global dragnet.

United States of Secrets (Part Two) FRONTLINE

Premiered May 19, 2014
United States of Secrets (Part Two)

FRONTLINE continues the dramatic inside story of mass surveillance in America with Part Two of United States of Secrets, an investigation into the hidden relationship between Silicon Valley and the National Security Agency.

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FRONTLINE

FRONTLINE explores and illuminates the critical issues of our times - from business and health to social issues, politics and war.

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