61.   But Seeburg testified that in early May, he and Goeddel concluded the Genentech effort had failed.

62.   But the mainstreaming effort will fail if the special-education student gets dumped into a regular classroom that is overcrowded and lacks necessary support services.

63.   But the Pentagon effort failed to come up with a workable detection system in time for the war, leaving the allied forces vulnerable to exposure throughout the conflict.

64.   But that effort failed, in part, because Vanderhoef said he wanted the job for only two years.

65.   But their efforts failed to win over conservative Democrats, many of whom strongly opposed the assault weapons ban.

66.   But those efforts failed to reassure many investors Tuesday.

67.   But unless they do some advance planning, their tax-reduction efforts will probably fail.

68.   But those efforts all failed.

69.   But those efforts have failed to yield tangible results so far, the officials said.

70.   But their efforts failed.