
ELF Operations
Clip: Season 24 Episode 11 | 1m 56s
How did the ELF communicate and evade capture?
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.
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Major funding for POV is provided by PBS, The John D. and Catherine T. MacArthur Foundation, the Wyncote Foundation, Reva & David Logan Foundation, the Open Society Foundations and the...

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.
Problems with Closed Captions? Closed Captioning Feedback
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POV Playlist
Every two weeks, we curate a selection of POV docs, old and new, around a central theme. Stream while you can — until the next Playlist!Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipClip: S24 Ep11 | 3m 48s | Radical Earth Liberation Front members set arsons as a form of protest. (3m 48s)
If a Tree Falls: A Story of the Earth Liberation Front...
Preview: S24 Ep11 | 2m 17s | A documentary that lifts the veil on a radical environmental group. (2m 17s)
If A Tree Falls - Filmmaker Interview
Clip: S24 Ep11 | 20m 49s | Marshall Curry discusses a former radical environmentalist. (20m 49s)
Clip: S24 Ep11 | 4m 39s | Do the ELF crimes fit the definition of terrorism? (4m 39s)
Clip: S24 Ep11 | 3m 6s | Police respond to environmental activists in Oregon. (3m 6s)
If a Tree Falls: Interview with Sam Cullman
Clip: S24 Ep11 | 24m 59s | Co-director Sam Cullman discusses the activists in his film. (24m 59s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorshipSupport for PBS provided by:
Major funding for POV is provided by PBS, The John D. and Catherine T. MacArthur Foundation, the Wyncote Foundation, Reva & David Logan Foundation, the Open Society Foundations and the...