1.   At the request of federal authorities Thursday, law enforcement agencies throughout the country began scrutinizing truck drivers hauling hazardous materials.

2.   All of the truckers hauling hazardous material will have their licenses verified through a Mexican database.

3.   But it was not clear Tuesday whether either man had actually received a permit to haul hazardous material.

4.   But the only thing separating a license for truck drivers hauling hazardous material from those hauling bricks is a simple written exam.

5.   EPA officials reversed course and decided the material should be hauled away from the Shattuck Chemical Superfund site.

6.   Federal law enforcement officials refused Tuesday to discuss why persons suspected of links to the hijackers had sought permits to haul hazardous material.

7.   Hartung said background checks were not required for getting a license to haul hazardous materials.

8.   However, he was not licensed to haul hazardous material, she said.

9.   Lately, the space shuttle has become a space age pickup truck, hauling building materials up to the still-under-construction International Space Station.

10.   Some were licensed to haul hazardous materials.