31.   But many questions remain about how the murderous rampage could have occurred at the heavily guarded airport.

32.   But more important mysteries remain about the former secretary general of the United Nations.

33.   But questions remain about how fast people are embracing new domain names.

34.   But questions remain about the attitude of Saddam, who has never liked the limits on oil sales.

35.   But questions remain about how some objects, especially large pieces, get out of the country undetected.

36.   But questions remain about other aspects of the case.

37.   But questions remain about the Revolution strike combinations.

38.   But questions remain about whether the American information actually aided the Soviets, according to the book.

39.   But real questions remain about the new alliance between the two states.

40.   But questions remain about how narrowly or broadly that Supreme Court decision should be interpreted.