Xerox contends that Apple "intentionally and purposefully concealed" the derivation of the Lisa and Macintosh software from Xerox software.

Exposure of information intentionally concealed may lead to unintended consequences or produce negative emotional outcomes.

Mr. Mahoney said that it is not State Department policy to intentionally conceal from the family the condition of an American imprisoned abroad.

General Powell said he knew that Mr. Weinberger kept a diary, but was unaware of any effort to intentionally conceal it from Congress.

"It wouldn't be very polite to ignite their atmosphere," Archer casually observed, intentionally concealing any tone of concern in his voice.

While never intentionally concealing his role as "Jimmy," Gustafson remained anonymous until 1998, the 50th anniversary of the original radio broadcast.

The judge found that the U.S.I.A. had "intentionally concealed" the reason for her dismissal and had "blacklisted" her thereafter.

But the companies intentionally conceal these studies and instead attempt to develop variants of these chemicals that can be patented and sold more profitably.

Not that he intentionally concealed their identities, only that they were part of his personal, not professional, life.

Collins ruled that Birdsong "intentionally concealed" the leg injury that kept him out of all but seven games this season.