1.   The previous episode had turned his body into a time bomb waiting for the next sting to trigger an explosion.

2.   And Arafat must have been aware that his calls for strikes and demonstrations could trigger an explosion.

3.   A backhoe driver hit a gas main, triggering an explosion.

4.   A projectile fired from the five-inch gun contains radar in the tip that triggers an explosion when it gets close to a target.

5.   But the five-run second-inning explosion was triggered with John Flaherty singling in two runs.

6.   But the soldiers had learned not to touch, fearing that any of the objects could trigger an explosion.

7.   Each fragment triggered explosions with the energy of more than a million thermonuclear bombs.

8.   For months, the leading theory among NTSB officials in charge of the investigation has been that a spark of static electricity triggered the explosion of fuel vapors.

9.   He said the investigation into what triggered the explosions centered on an outside impact, like a collision, or something inside.

10.   In both cases, OSHA investigators cited missing or faulty equipment meant to guard against unsafe conditions that can trigger explosions in the highly combustible grain dust.