Why keep so carefully concealed the reasons for all he did?

Instead, the country has been running huge, but carefully concealed, deficits for years.

She carefully concealed the scars so nobody would ask any questions.

She carefully concealed her satisfaction at this first use of the word 'our'.

He had long learned to pick up on the amusement carefully concealed behind his first officer's eyes.

His power carefully concealed was second only to that of Quarmal.

He had carefully concealed it from the king, but the whole thing rather nettled him.

Those three days were filled with frenzied activity, carefully concealed from the rest of the world.

What would happen, though, if you carefully concealed a silent alarm linked to a security service?

If there are any good ideas around, they are being carefully concealed.