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OSTIblog Articles in the declassified Topic

DOE Releases Manhattan District History and Oppenheimer Personnel Hearing Transcript via OSTI-Hosted OpenNet

by Rita Hohenbrink 09 Oct, 2014 in


The Department of Energy (DOE) recently completed two significant declassification efforts and has made the newly released documents publicly available on the OpenNet database, which DOE launched 20 years ago to improve public access to declassified documents.  The website is supported by the DOE Office of Classification and hosted by the Office of Scientific and Technical Information (OSTI) on a cost-reimbursable basis.

Over a 12-month period concluding in July 2014, DOE released to the public the Manhattan District History, a multi-volume classified history of the Manhattan Project.  Commissioned in late 1944 by General Leslie Groves, the history was “intended to describe, in simple terms, easily understood by the average reader, just what the Manhattan District did, and how, when, and where.”  The history records the Manhattan Project’s activities and achievements in research, design, construction, operation, and administration, assembling a vast amount of information in a systematic, readily available form.

Through the combined efforts of the Office of Classification and the Office of History and Heritage Resources, in collaboration with OSTI, the full text of the entire 36-volume Manhattan District History, organized in 79 files and containing more than 13,500 pages, is now available to the public on OpenNet.  Unclassified and declassified volumes have been scanned and posted.  Classified volumes were declassified in full or with redactions; still classified terms, phrases, sentences, and paragraphs were removed and the remaining parts made...

Related Topics: atom bomb, declassified, hearing, Leslie Groves, Manhattan Project, OpenNet, Oppenheimer, security

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OpenNet gets a new look!

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OpenNet gets a new look!

The newly redesigned OpenNet contains spotlights on declassified collections. This quarter the spotlight is on the Human Radiation Experiments collection. OpenNet provides easy, timely access to the Department of Energy’s declassified documents, including information declassified in response to Freedom of Information Act requests. In addition to these documents, OpenNet references older document collections from several DOE sources. This database is updated regularly as more information becomes available. The OpenNet web site is sponsored by the Office of Health, Safety and Security Office of Classification. OpenNet is intended to make information that is no longer classified more readily available to the public. This action supports DOE’s Open Government Initiative.  Through OpenNet you can find more information on openness policy and openness initiative information resources.

Related Topics: declassified, human, Open government, openness, OpenNet, radiation

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