The Spy Factory

Feb 03, 2009 on PBS at 9:00 PM
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Summary

NOVA investigates the high-tech eavesdropping carried out by the National Security Agency and the effectiveness of surveillance in an age of terrorism.

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The Incredible Journey of the Butterflies
Season 36 Episode 2

Jan 27, 2009

Next episode

Rat Attack
Season 36 Episode 4

Feb 24, 2009

Guest stars

Jay O. Sanders