1.   Environmentalists wonder whether the electricity Bakun would generate is even needed, since feasibility studies that might answer this question are classified state secrets.

2.   FBI checks of visitors found that some were suspected foreign agents, although the exact number is a classified secret.

3.   It also raises questions about civilian control of black programs, whose costs and nature are the most highly classified secrets in the Pentagon.

4.   Report on Waco evidence contains classified military secrets,

5.   Security costs for the vice president and first lady are classified secrets that have never been made public.

6.   The Navy used its submarines for some Arctic studies but the data was classified secret.

7.   The Parche has earned five separate awards, and the citations for each are classified top secret.

8.   The planned route is classified secret, as is always the case with the subs.

9.   The texts of both messages are still classified top secret.

10.   Though still officially classified secret in some cases, such information by then was widely available in many unclassified American papers and articles.