41.   But it has become an issue in recent years because of uncertainty over whether the hormone increases the risk of breast cancer.

42.   But settlement expansion is hardly a dead issue, and neither is uncertainty over what it will mean for peace.

43.   But the tenants expect a difficult labor, fraught with uncertainty over the safety of the area and the uncertainty of what is to come.

44.   But the Apprendi case has thrown a cloud of uncertainty over Walton.

45.   But they also seemed to be using economic worries as a point of pressure on Gore, suggesting that uncertainty over the presidency was leaving financial markets on edge.

46.   Certain telecommunications stocks slipped amid uncertainty over the progress of the sweeping telecommunications bill.

47.   Compounding the indecision is uncertainty over what will tilt their vote one way or another, and what exactly leaders must do to improve the lives of Americans.

48.   Continuing uncertainties over the strength of consumer demand, centered on the pace of economic recovery and the potential for further threats to national security, cloud the outlook.

49.   Continued uncertainty over the future shape of the next Czech government is bound to hurt trading in Czech stocks, bonds and the koruna this week, traders said.

50.   Despite the uncertainty over the legislation, two deals have gone forward in the financial district in the last few weeks.