41.   But if the new effort fails, as many Hanford watchers predict it will, years could be lost.

42.   But if peace efforts fail in Colombia, he said, the progress made in reducing coca production in the Andean countries will suffer.

43.   But if that effort fails, Washington should not hesitate to act alone.

44.   But in Albany, where the uniformed unions hold great sway over legislators, every reform effort has failed.

45.   But in the end, her efforts failed.

46.   But its efforts have failed to establish a lasting agreement, and the latest cease-fire could unravel as well.

47.   But his efforts have failed, and that seems to please all sides for the moment.

48.   But minority leader Tom Daschle, D-S.D., concedes their efforts will likely fail.

49.   But others fear a backlash, should the effort fail.

50.   But senior administration officials interviewed in Washington said their efforts had failed to halt the flow of nuclear technology to Iran.