Officials said it appeared that several precautions failed.

Why did the internal regulations and internal precautions fail?

These are some of the deepest tombs in Egypt, although the precaution against grave robbers failed.

Alexander could also understand why the Federation had gone to such great lengths to protect its secret, even if all their precautions had ultimately failed.

Moreover, even the best precautions might fail.

But first a precaution: "Sword and mail: Do not fail."

Unfortunately these precautions failed to prevent the crack from worsening.

But should such precautions fail, the available choices take different directions along gender lines.

If precautions fail and the driver winds up facing a gunman, resistance is discouraged.

But their precaution failed to serve their purpose entirely.