FAS

NSA Declassifies 200 Year Old Report

06.09.11 | 2 min read | Text by Steven Aftergood

The National Security Agency announced yesterday that it has declassified a report that is over two hundred years old.

The newly declassified report, entitled “Cryptology: Instruction Book on the Art of Secret Writing,” dates from 1809.  It is part of a collection of 50,000 pages of historic records that have just been declassified by NSA and transferred to the National Archives.

The NSA said the new release demonstrated its “commitment to meeting the requirements” of President Obama’s January 2009 Memorandum on Transparency and Open Government.

The bulk of the newly released documents are from World War II and the early post-War era. (NSA itself was established in 1952.)  A list of titles released to the National Archives is here (pdf).

Last April, the Central Intelligence Agency declassified several documents on the use of “invisible ink” that dated from the World War I era.  But those were not even a century old.

Meanwhile, in more recent developments, the case of former NSA official Thomas A. Drake, who is charged with unlawful retention of classified information, is said to be “changing hour by hour.”

On Sunday, the government told the court (pdf) it had decided to withdraw several of its proposed exhibits rather than declassify them for trial, Politico reported (“Feds pare back NSA leak case to shield technology” by Josh Gerstein, June 6).

As a consequence, prosecutors are now seeking a plea bargain, the Washington Post reported, but Drake has twice refused to accept their offer (“Ex-NSA manager has reportedly twice rejected plea bargains in Espionage Act case” by Ellen Nakashima, June 9).

The trial of Thomas Drake is currently still scheduled to begin in Baltimore on Monday, June 13.

publications
See all publications
Government Capacity
Policy Memo
We Need a U.S. Permitting Corps: Executive and Legislative Recommendations

Despite significant political momentum behind reform efforts, limited attention has been paid to the federal workforce that will actually be responsible for interpreting and implementing new permitting regulations and better outcomes.

07.08.26 | 10 min read
read more
Environment
Press release
Amid Sweltering Weather, the Federation of American Scientists Releases Expert-Sourced “State and Local Heat Policy Agenda”

Nearly 150 organizations and government officials have endorsed the call to action and solutions for extreme heat, now public at HeatAgenda.US Washington, D.C. – July 7, 2026 – As millions of Americans continue to struggle to stay cool following one of the hottest Independence Day holidays on record, the Federation of American Scientists (FAS), one […]

07.07.26 | 3 min read
read more
Environment
Issue Brief
Policy Memo
The State and Local Heat Policy Agenda

Addressing rising heat will take all of us. Together, we can create heat-safe homes, workplaces, schools, childcare facilities, and communities – the backbone of a heat-ready nation.

07.07.26 | 5 min read
read more
Emerging Technology
day one project
Policy Memo
Securing Cell-Free Biomanufacturing as a Strategic National Capability

DNA synthesis and export controls remain the primary regulatory safeguards against de novo production of harmful biological agents, yet governance frameworks lack the situational awareness and enforcement capacity to keep pace with rapidly falling technical barriers.

07.02.26 | 11 min read
read more