1.   An accidental explosion in a German physics lab has led to the identification of a super powerful explosive.

2.   Five Palestinian boys walking to school were killed Thursday when a powerful explosive detonated beneath them at the crest of a sand dune here, near an Israeli settlement.

3.   He then began buying the acids and agricultural chemicals needed to produce powerful explosives.

4.   Hijazi traveled to Jordan and began buying the acids and agricultural chemicals needed to produce powerful explosives.

5.   It would use precise guidance and enormously powerful explosives, sending a pulse of blast, pressure and fire deep into caves.

6.   More and more terrorists are using powerful explosives to attack mass-civilian targets.

7.   Police commanders said the bomber had carried powerful explosives, which apparently went off early, averting far more serious casualties.

8.   Ressam was charged with trying to smuggle powerful explosives and sophisticated timing devices in a car he was driving across the Canadian border near Seattle.

9.   Recipes, newsgroup discussions and step-by-step manuals on assembling powerful explosives can be found with the click of a computer mouse.

10.   Sayegh, the authorities said, may have given the go-ahead signal to the driver of the truck that was loaded with powerful explosives.