1.   A presidential scandal that was never long on mystery or romance surrendered perhaps its last tantalizing secret Tuesday.

2.   He is campaigning in a score of countries for help in building a pair of gigantic cosmic-ray telescopes expected to reveal some tantalizing secrets of the universe.

3.   The overpowering implication is that a tantalizing secret is about to be shared with a roomful of people, many of whom are largely unknown to the official.

4.   There are no hidden pools of passion or wit, no tantalizing secrets lurking behind her blank, expressionless gaze.