Bitcoin is a peer-to-peer monetary system in which all transaction records are public. Participants can use its open-source software to transfer virtual currency to one another as easily as they might send an email. Bitcoin opens an uncharted world of new possibilities to explore. We'll follow the stories of entrepreneurs and startups that are helping shape the new financial frontier. We'll look at the competitive mining market and the various subcultures within the Bitcoin community." You'll encounter a variety of characters and opinions as we examine the social and political impact of an open-source digital currency. Will the rise of Bitcoin bring a monetary paradigm shift that will forever change the world? Supposedly invented by a mysterious Japanese man named Satoshi Nakamoto (whose current whereabouts are unknown). Because it is designed to have an absolute ceiling of 21 million Bitcoins in circulation (not anticipated until 2040), and the system has no central depository or administrative authority, it has great appeal to libertarians and others who seek alternatives to a perceived corrupt, manipulative banking infrastructure and excessive government regulations. Its low processing fees compared with those of mainstream credit-card companies also hold considerable allure for merchants.

Citizenfour received the Academy Award for Best Documentary Feature at the 2015 Oscars. The film was directed by Laura Poitras concerning Edward Snowden and the NSA spying scandal." In January 2013, Laura Poitras received an encrypted e-mail from a stranger who called himself Citizen Four. In it, he offered her inside information about illegal wiretapping practices of the NSA and other intelligence agencies. Poitras had already been working for several years on a film about monitoring programs in the US, the result of the September 11 attacks. In June 2013, accompanied by investigative journalist Glenn Greenwald and The Guardian intelligence reporter Ewen MacAskill, she went to Hong Kong with her camera for the first meeting with the stranger, who identified himself as Edward Snowden. Several other meetings followed. The recordings gained from the meetings form the basis of the film.

Was the sacrifice of an entire generation worldwide an avoidable or a necessary tragedy? Are the roots of World War II to be found in the devastation of World War I? Drawing from over 300 hours of archival footage and tracing the journeys of the civilians and soldiers across the world, anonymous or well-known, who fought for survival in this unprecedented period in human history, both heroic and barbaric. On June 28th, 1914, the assassination of an obscure Austrian archduke in Sarajevo triggers the most disastrous conflict the world has ever known. Germany becomes an enemy to France, invades Belgium, and in September arrives at the gates of Paris.

The French army stops the German advance at the battle of the Marne, while the Germans halt the Russians at Tannenberg on the eastern front. In France, the warring parties dig themselves in for 4 years in the trenches. Soldiers from the colonies come lend a hand to their colonizers and the war becomes global.

1916. The war is raging in Europe and stretches from the trenches in France to the Italian Alps and the Balkans, and beyond to the gates of the Eastern world. The conflict becomes industrial, and millions of shells rain down on the battlefields; Verdun and the Somme are the deadliest battles in this second year of the war. Who can stop this infernal machine?

1917. People have had enough of the war. Behind the scenes, uprisings are brewing, like the one that toppled the Tsar in Russia; on the front soldiers begin to mutiny as they did at Chemin des Dames in France. German submarine attacks in the Atlantic will finally pull the Americans into the war, but they arrive too late to help prevent the carnage of the Battle of Passchendaele.