1.   Also last year, the State Department abruptly classified the Annan letter, which was not initially considered secret.

2.   But it is often unclear what China considers secret.

3.   --Did the former employer make clear to the employee this information was considered secret?

4.   Even the temperature at the time of launch and depth of the ocean in the impact zone was considered secret.

5.   It is often unclear what China considers secret.

6.   The case has raised questions about whether a document can be considered secret if it is widely available to the public.

7.   The full extent of the American role is considered highly secret.

8.   Troop dispositions are still considered secret.

9.   Under the communists, the Kronstadt submarine base was considered too secret to appear on official Soviet maps.

10.   Pope said the plans could not be considered secret because they already had been sold abroad and published in open sources.