NOVA

CyberWar Threat

Season 42 Episode 17 | 53m 10s

(This program is no longer available for online streaming.) The global cyberwar is heating up and the stakes are no longer limited to the virtual world of computers. Now, thanks in part to secret documents released by Edward Snowden, the true scale of the National Security Agency's scope and power is coming to light.

Aired: 10/14/15

Rating: TV-PG

Video has closed captioning.

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