1.   Both questions trouble serious journalists, of course, smacking of suggestions of deception and an unseemly preoccupation with career-enlarging trifles.

2.   But one question deeply troubled Figueres.

3.   So many questions trouble Mtselu.

4.   That question may also trouble GE Capital.

5.   The question troubled even him.

6.   The question troubles many leading researchers.

7.   The very question troubled Microsoft executives, who have labored since the trial began to convince Jackson that Internet Explorer is not a stand-alone application and never has been.