31.   Pesce, whose fiancee was killed on the flight, said the discovery of the explosive material had begun to close the chapter of what happened to the plane.

32.   --Requiring that chemical tracing agents, or taggants, be included in explosive materials.

33.   Seven East Texans were arrested Wednesday at the Flying J truck stop in Pecos after officers found assault weapons and explosive materials in their vehicle, Cox said.

34.   Terrorists have apparently plotted to conceal explosive material in their shoes in the past.

35.   Tests later showed that his high-top basketball shoes contained enough explosive material to cause serious damage to the aircraft.

36.   The agents should be able to determine if an explosive device was used by looking for residue of explosive material on debris and even on the bodies of victims.

37.   The explosive material was later taken to an old airfield and exploded by ATF agents.

38.   The FAA has acknowledged holes in the security net and concedes that checked bags are not routinely screened for weapons or explosive materials.

39.   The explosive material suspected in the Oklahoma City bombing is a mixture of fuel oil and a garden-variety ingredient in fertilizer, ammonium nitrate.

40.   The first bombs, crude devices whose explosive material consisted of match-heads, were the work of the bomber when he was still an amateur.