From the webpage:
This Archive is a complete collection of all documents that former NSA contractor Edward Snowden leaked in June 2013 to journalists Laura Poitras, Glenn Greenwald and Ewen MacAskill, and subsequently were published by news media, such as The Guardian, The New York Times, The Washington Post, Der Spiegel, Le Monde, El Mundo and The Intercept. The leaked documents and their coverage have raised significant public concerns and had a major impact on intelligence policy debates internationally over issues of freedom of expression, privacy, national security and democratic governance more broadly.
The Archive also contains some documents that the U.S. Government has published which are helpful in understanding the leaked documents. The Archive does not contain any documents that have not already been published in other sources.
The approximately 400 documents currently in the Archive are a small fraction of the estimated 50,000 documents Snowden turned over. Most of these will likely not be published, but as new documents are published, they will be added to the Archive.
Why did we build this archive?
Our aim in creating this archive is to provide a tool that would facilitate citizen and researcher access to these important documents. Indexes, document descriptions, links to original documents and to related news stories, glossary and comprehensive search features are all designed to enable a better understanding of state surveillance programs within the wider context of surveillance by the U.S. National Security Agency (NSA) along with its partners in the Five Eyes countries – U.K., Canada, Australia and New Zealand.
Our hope is that this resource will contribute to greater appreciation of the broad scope, intimate reach and profound implications of the global surveillance infrastructures and practices that Edward Snowden’s historic document leak reveals.
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Sigh, four hundred (400) documents out of fifty-thousand (50,000) which is far fewer than were estimated to be taken by Snowden.
The released 400 documents represent 0.0008% of the 50,000 figure and you see what they have provoked.
Is it clear now why I prefer for 100% of the leaked documents to be published?
Even if criminal prosecutions are unlikely, at least those responsible could be banned from international travel.