He didn't tell the priest that he had sold classified secrets and taken money for betraying military secrets.

Recently, Americans have shown great concern about the reported loss of classified nuclear secrets to the Chinese.

I will tell you the story, which will remain classified top secret until further orders.

Some of the new underwater machinery was originally developed by the military and classified secret.

The accident remained a classified military secret for many years.

But the sector described above was NOT the most classified secret at Area 51 & 1/2.

The amount of the appropriation, a classified secret, is to pay for intelligence activities in the fiscal year starting Oct.

What if the formula was a classified military secret?

A senior aide to the president facing indictment for revealing classified secrets.

The White House has repeatedly pledged cooperation while stressing the delicacy of protecting classified secrets.