1.   In July, a fire paralyzed Baltimore and disrupted Internet links for three days when a freight train carrying toxic chemicals derailed in a tunnel.

2.   The Border Patrol chief warns of a toxic spill that could occur should Mexican bandits derail one of the dozens of Southern Pacific freight trains carrying chemicals.

3.   The chemical is carried in stainless steel tankers.

4.   The derailment of the train, which was carrying hazardous chemicals, wood and paper, is under investigation.

5.   These cells have projections that carry the chemicals throughout the brain and modulate its activity.

6.   Those miniature ducts carry chemicals called pheromones to an organ that may govern your level of sexual excitement.

7.   Attorney General John Ashcroft on Tuesday told Congress that terrorists may be planning an attack using a truck carrying hazardous chemicals.

8.   But Ixonia Fire Chief Bruce Degner said Wednesday that company officials told investigators the van was not carrying cleaning chemicals when it crashed.

9.   Hundreds of homes were evacuated Saturday evening after a boxcar carrying a chemical into an Oshkosh chemical plant caught on fire.

10.   In the last few months, several truck tankers carrying dangerous chemicals have tipped over near key rivers, contaminating drinking water and causing widespread environmental damage.