Table 4.1. Information needed by classifiers about dissemination of knowledge in a scientific or technical field
Information needed by classifiers	Source of information	Probable comprehensive knowledge and accuracy of this source
Published state-of-the-art information	Experts	Very high
Known, but unpublished, unclassified state-of-the-art information in • the United States • friendly countries • unfriendly countries	Experts Experts Experts and intelligence agencies	High Medium Low
Extent of foreign knowledge of the unpublished unclassified state-of-the-art information in the United States in • friendly countries • unfriendly countries	Experts and intelligence agencies Experts and intelligence agencies	Medium Very low
Known, but classified, state-of-the- art information in • the United States • friendly countries • unfriendly countries	Cleared experts Intelligence agencies Intelligence agencies	High^a Low^b Very low
^aNeed-to-know considerations keep this from being “very high.” ^bIntelligence agencies generally do not “snoop” on their friends. Possibly this should be “very low.”