Looks at the history of marijuana in America, particularly its medicinal purposes and legalization. Includes interviews with experts and celebrities on both sides of the debate.

Former Vice President Al Gore explains the facts of global warming, presents arguments that the dangers of global warning have reached the level of crisis, and addresses the efforts of certain interests to discredit the anti-global warming cause. Between lecture segments, Gore discusses his personal commitment to the environment, sharing anecdotes from his experiences.

An investigation into the introduction of torture as an interrogation technique in U.S. facilities, and the role played by key figures of the Bush Administration in the process. Takes an in-depth look at the case of Afghan taxi driver Dilawar, who was suddenly detained by the U.S. military one afternoon and died in his Bagram prison cell five days later.

Nero, a deported Mexican, returns illegally to the U.S in search of his identity. He joins the U.S army as a Green card soldier, a shortcut to citizenship. Lost in a maze, Nero fights to obtain his nationality.

On January 20, 1942, 15 German officials attended a conference at Wannsee - on the outskirts of Berlin. The meeting comprised of mid-ranking SS commanders and a variety of government ministers. The meeting was organized by SS Major Adolf Eichmann under the direction of Chief of Security Reinhard Heydrich. It was a polite conference, but under this thin veneer of manners lay an evil intent. By the end of the meeting, the fate of six million lives would...

Seoul train: "In order to survive, hundreds of thousands of North Koreans have fled to neighboring China. For North Koreans, life in China is desperate--women are often trafficked into prostitution and children left homeless. Going back is not an option. Defecting from North Korea is a capital offense punishable by torture, forced labor, and execution. Yet the Chinese government, in defiance of international laws, hunts down North Koreans and...

London, 2027. Humanity has become infertile and no child has been born for 18 years. Science is at loss to explain the reason. Immigration is a crime and refugees are caged like animals. African and East European societies have collapsed and their dwindling populations are migrating toward England and other wealthy nations torn apart by nuclear fallout, rampant terrorism, and political rebellion. In this climate of nationalistic violence, London peace...

Back in the 1980s, a giant spacecraft stalled in the skies over Johannesburg. 1.8 million of the aliens that were aboard were rescued, and placed in a refugee camp--District 9. Over the next 20 years, District 9 became a teeming shantytown like so many others in the developing world. Although there is evidence that the extraterrestrials represent an advanced civilization, their lives on Earth are marked by squalor, dysfunction, and xenophobic hostility....

Narrated by Katie Couric, the film blows the lid off everything that was known about food and exercise, revealing a 30-year campaign by the food industry, aided by the U.S. government, to mislead and confuse the American public. Exposing the hidden truths contributing to one of the largest health epidemics in history, it follows a group of families battling to lead healthier lives and reveals why the conventional wisdom of 'exercise and eat right'...

Frontline investigates the secret history of the unprecedented surveillance program that began in the wake of September 11th and continues today. As big technology companies encouraged users to share more and more information about their lives, they created a trove of data that could be useful not simply to advertisers, but also to the government. The revelations of NSA contractor Edward Snowden would push Silicon Valley into the center of a debate...