ELF Operations

Clip: Season 24 Episode 11 | 1m 56s

This clip, from 'If A Tree Falls: A Story of the Earth Liberation Front,' describes how members of the ELF were able to covertly communicate and evade authorities. It describes the "book club" that trained new recruits in using books as a code source, before beginning to work with computer encryption techniques.

Aired: 09/12/11

Rating: NR

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