In this clip from 'If A Tree Falls: A Story of the Earth Liberation Front,' a former activist remembers the day that people climbed trees in order to protect them from being cut down for development. Police responded to the situation using tear gas and pepper spray, sparking outrage and the radicalization of some protesters.

Filmmaker Marshall Curry investigated the Earth Liberation Front arsons for his documentary 'If A Tree Falls.' In this exclusive interview, Curry discusses gaining the trust of his subjects, his filmmaking process, and ethical concerns for documentary filmmakers.

In this clip from 'If A Tree Falls: A Story of the Earth Liberation Front,' prosecutors, defendants, family members and victims of the ELF fires debate whether their crimes should be considered terrorism.

"If a Tree Falls: A Story of the Earth Liberation Front" explores two pressing issues - environmentalism and terrorism - by lifting the veil on a radical environmental group the FBI calls America's "number one domestic terrorism threat." Daniel McGowan, a former member of the Earth Liberation Front, faces life in prison for two multimillion-dollar arsons against Oregon timber companies.

In this clip from 'Better This World,' Brad and David weigh their options after being arrested at the Republican National Convention. Both want to stay loyal to each other, despite intimidating prosecutors and plea deal offers. They must make a decision whether to plead guilty and possibly testify against each other.

'Better This World' and 'If a Tree Falls: A Story of the Earth Liberation Front' feature political activists who cross the line into law-breaking and authorities who may be crossing their own lines to catch them.

In this clip from 'Better This World,' David McKay accepts a plea deal on the last day of his trial, assuming his sentence will be similar to Brad's.

The directors of 'Better This World,' Katie Galloway and Kelly Duane de la Vega, sit down with POV to discuss the subjects of their film. They describe FBI informant use in post-9/11 America, the media's role in court cases relating to national security, and the two men who are the focal point of their striking documentary.

"Better This World" follows the radicalization of Bradley Crowder and David McKay from Midland, Texas, under the tutelage of revolutionary activist Brandon Darby. The results: eight homemade bombs, multiple domestic terrorism charges and a high-stakes entrapment defense hinging on the actions of a controversial FBI informant.

Janus Metz, the filmmaker behind the Danish war documentary 'Armadillo,' talks about filming his documentary on the front lines of the war in Afghanistan. He describes the psychological effects of war on the people who experience it firsthand, and addresses the controversial incident which has garnered plenty of attention for the film.

In this clip from 'Armadillo,' the platoon commander is hit by an IED (improvised explosive device). He must return to Denmark in order to receive medical treatment while the soldiers continue on with their daily missions and duties.

In 2009, Janus Metz and cameraman Lars Skree accompanied a platoon of Danish soldiers to Armadillo, a combat operations base in southern Afghanistan. For six months, they captured the lives of the young soldiers fighting the Taliban in a hostile and confusing environment, where official rhetoric about helping civilians too often met the unforgiving reality of being a foreign occupier.

The animators of the StoryCorps Shorts, Mike and Tim Rauch, give their opinions on "animated documentaries." They explain how animation can sometimes capture aspects of reality that traditional documentary footage cannot.

Dave Isay, founder and president of StoryCorps, sat down with POV in 2010 to discuss StoryCorps' purpose and goals. Isay describes how his own background as a radio documentarian led to the StoryCorps project and how the organization helps people remember that they matter and "won't be forgotten."

David Wilson offers a glimpse into the world of competitive birdwatching, as three friends attempt to see as many species as possible in 24 hours.

When first approached by his brother to work on the StoryCorps shorts, Tim Rauch said that there was "no way" to animate the StoryCorps recordings. However, after completing two, he started to think otherwise.

Tim and Mike Rauch, the animators behind the StoryCorps Shorts, describe how they arrived at their animation style, noting how they adapt it for each short depending on the story.

The Rauch Brothers describe their animation process to POV. Using audio recordings from the oral history project StoryCorps, the Rauch Brothers animate shorts, drawing from what they learn about the characters through the audio recordings as well as in-person meetings.

The co-director of 'If a Tree Falls: A Story of the Earth Liberation Front,' Sam Cullman, talks about FBI informants, radical environmentalism and post-9/11 counterterrorism efforts. He describes how the film came together, how he and his co-director gained trust from their subjects and how they found the archival footage that constitutes a good portion of the film.

In this clip from 'Steam of Life,' an elderly man tells his friends about his late wife, and the "new" relationship which he has found late in life. He shares his story candidly and openly, saying that he is now in love and having the "best years of his life."