But details of the peace plan have been kept secret.

That little detail had been kept out of the press.

As a result, details of the trip were kept secret.

The full details of the report have been kept confidential.

When he was 9, his mother cut her own throat; the details were kept from him for years.

They sometimes talked about the illness, but many details were kept private.

But the details had been kept secret as private taxpayer information.

"I can't keep small details in my mind, never could."

Administration officials have kept details of the speech under wraps.

Although it was known that something serious had occurred, the details were kept secret for decades.