51.   But for the moment, we think Congress is the right body to examine this affair and to lay out for the nation just how it played out.

52.   But doctors are coming to realize that for most people, the best treatment is nothing beyond a few aspirin and lying around for a day or two.

53.   But it was close enough to provide some interesting lessons about the challenges that lie ahead for the first Mars explorers.

54.   But many other difficult issues lie ahead for the two nations.

55.   But that would be only a foretaste of the far-reaching changes that may lie ahead for the New York region as the war on smoking continues, experts say.

56.   But the dispute over the provision may foreshadow some of the troubles that lie ahead for the proposal.

57.   But she insisted that she would not lie for them.

58.   But they cannot lie low for long, since some states, like Oregon, begin voting by mail next week.

59.   But they reflect a key problem that lies ahead for Netanyahu, even if he surmounts the divisions on the right to emerge as its candidate.

60.   But what lies ahead for Sampras?