Federal agencies such as the nsa, fbi, and cia use specialty classification schemes. for materials that are not considered "national security information," data is the lowest-level classification.

Unclassified

Explanation:

In the schemes used by federal agencies like FBI, CIA and NSA, these agencies make use of special classification of data into 3 groups which are Confidential, top secret and secret data.

The information without any label or for those materials that are under consideration "National Security Information," data is grouped as unclassified which is the lowest of all the level of data classification.

The unclassified data is the default data and it is that information that is allowed to flow without the need of clearance to the people. This information, sometimes, when restricted to flow or release is referred to as Sensitive But Unclassified data  or is used officially only.

usually, however, secession was popular enough without the of community leaders. prominent unionists, on the other hand, were a major reason that texas did not secede before march 1861. the most important of these was sam houston, the governor of the state from 1859 to 1861.

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answer; environmental science;