“Sensitive Security Information (SSI) is information that would be detrimental to transportation security if publicly disclosed,” according to a Department of Homeland Security directive released last week under the Freedom of Information Act.
See DHS Management Directive 11056 (pdf), “Sensitive Security Information,” December 16, 2005.
Confusingly, however, SSI is also a control marking used by the Department of Agriculture to mean something quite different, observed information policy expert Harold C. Relyea of the Congressional Research Service in a new report (pdf) on classification and other information controls.
SSI “is both a concept and a control marking used by the Department of Agriculture (USDA), on the one hand, and jointly by the Transportation Security Administration (TSA) of the Department of Homeland Security as well as by the Department of Transportation, on the other hand, but with different underlying authorities, conceptualizations, and management regimes for it,” he wrote.
See “Security Classified and Controlled Information: History, Status, and Emerging Management Issues,” June 26, 2006.
While the number of different designations for “sensitive but unclassified” information has been estimated at over 60, that number approaches 100 if different agency definitions of the same designation are taken into account, according to a Justice Department official.
China is NOT a nuclear “peer” of the United States, as some contend.
China’s total number of approximately 600 warheads constitutes only a small portion of the United States’ estimated stockpile of 3,700 warheads.
The Federation of American Scientists strongly supports the Modernizing Wildfire Safety and Prevention Act of 2025.
The Federation of American Scientists strongly supports the Regional Leadership in Wildland Fire Research Act of 2025.
In an era of such massive sweeps upending federal programs, increased transparency is even more important to provide the public with the knowledge necessary to respond and hold the government accountable.