Blancornelas forms 'Zeta,' a newsweekly out of Tijuana, Mexico, in the 1980s, after seeing a need for more investigative journalism in the reporting of drug trafficking and politics.

A Zeta reporter, after deciding to use his own byline, puts his life on the line in order to publish an important list of people linked to organized crime.

Bernardo Ruiz discusses making 'Reportero,' a documentary about Tijuana journalists risking everything to report on narco trafficking and political corruption.

Adela Navarro updates POV viewers on how 'Reportero' has affected the newsweekly Zeta and how she feels it has impacted her safety for the better.

Patricio Guzmán's Nostalgia for the Light is a remarkable meditation on memory, history and eternity. Chile’s remote Atacama Desert, 10,000 feet above sea level, provides stunningly clear views of the heavens for astronomers. But it also holds secrets from the past: human remains, from pre-Columbian mummies to the bones of political prisoners "disappeared" during the Pinochet dictatorship.

In this clip from 'Nostalgia for the Light,' an architect who was imprisoned at a concentration camp during Augusto Pinochet's regime in Chile explains how he was able to memorize and document the camp, without getting caught.

In this clip from 'Nostalgia for the Light,' a woman who continues to search for the bodies of those who were "disappeared" during Pinochet's regime remembers learning of her brother's fate after part of his remains were discovered.

In this clip from 'Nostalgia for the Light,' a man remembers the astronomy club he was a part of while he was imprisoned in a concentration camp under Augusto Pinochet's regime in Chile.

When a Navajo couple uncovers a hidden link between their children’s rare genetic disorder and the American government’s conquest of their tribe, their lives are changed forever.

Filmmakers Maya Stark and Adi Lavy talk about their film 'Sun Kissed,' which follows a Navajo couple as they search for answers about the origins of a rare skin disease, XP, which affected both of their children. The filmmakers describe their reasons for making the film as well as the responsibility that comes with telling a personal and sensitive story in a documentary.

Geneticist Robert Erickson describes a theory behind the prevalence of XP on the Navajo reservation.

Michelle Evans Milota, Executive Director of the XP Family Support Group, travels to a house on the Navajo reservation to help a family protect their home from UV rays which would be extremely harmful to their child who has XP.

Harry C. Myers explains the significance of creating the Long Walk National Historic Trail and importance of remembering this episode in Navajo history.

Dorey and Yolanda meet with a historian to learn more about the Long Walk. The Long Walk was the climax of a brutal war of near-extermination waged against the Navajo people, beginning in 1862 when Americans invaded the Southwest. More than 10,000 Navajos were forced to walk 500 miles—those who could not keep up were shot—and subsequently imprisoned in a camp called Bosque Redondo.

Meet Dorey and Yolanda Nez who had two children with XP. People with XP are extremely sensitive to the damaging effects of ultraviolet radiation. If undiagnosed and untreated, XP can lead to the early onset of skin cancer and blindness.

'Give Up Tomorrow' exposes shocking corruption within the judicial system of the Philippines in one of the most sensational trials in the country’s history. Two grieving mothers, entangled in a case that ends a nation’s use of capital punishment but fails to free an innocent man, dedicate more than a decade to executing or saving him.

In this clip from 'Give Up Tomorrow,' a man is arrested for a crime which occurred 350 miles away from where he was at the time.

Paco pleads for help from Spain after he is sentenced to death for a crime he did not commit. Give Up Tomorrow premieres October 4, 2012 on PBS.

Filmmakers Michael Collins and Marty Syjuco discuss the making of 'Give Up Tomorrow,' challenges they faced with filming a subject on death row, and the ethics involved in telling a story that hits close to home.

In this clip from 'Give Up Tomorrow,' Rusia becomes a controversial state witness for the Chiong case.