71.   In every other case, backup computers remained on when the primary system failed.

72.   In October, the backup radar system failed twice while the primary system was down for repairs or maintenance.

73.   In space, systems fail and the unexpected happens.

74.   Investigators want to know why the White House computer system failed to capture thousands of incoming e-mails to top White House personnel, and whether the effort was deliberate.

75.   It is not uncommon to hear economists declare simply that the U.S. system has failed.

76.   It is too early to tell whether the radio alert system failed.

77.   It was this challenge that caused the system to fail its first test last spring.

78.   It works for the shots and sniffles, but more complex cases can cause the system to fail.

79.   Its inadequate computer systems fail to accurately record or adequately maintain and update data.

80.   It was not immediately clear why the Medicaid system failed to spot problems with Metro Med Ambulette for more than five years.