41.   Simply mailing a check to every taxpayer would appear to be simpler, but it also raises a host of problems.

42.   The Food and Drug Administration approved the pill late last month after a decade of study, raising a host of legal, political and medical issues.

43.   The privilege has been jealously guarded and a new door would raise a host of new questions.

44.   This new ability to predict cancer raises a host of vexing scientific and ethical questions.

45.   But the Russians have raised a host of reservations, including bureaucratic and environmental concerns, the Times said.

46.   The decision has raised a host of logistical, protocol and security questions, including sites for the final and opening and closing ceremonies.