1.   At the time, that was no idle question.

2.   But wondering whether a parent is unfaithful is not an idle question for a generation shaped by divorce.

3.   Hers was not an idle question.

4.   Idle questions that have struck one theatergoer in the last few months.

5.   It was not an idle question.

6.   Sadly, it is not an idle question in this litigious age.

7.   These are not idle questions.

8.   Finding out why hot summers reduce spring births is not an idle question, Lam said.

9.   Unlike much of science, it was no idle question.