81.   For example, FBI officials believe that their hazardous materials response unit should be the authoritative voice during such an attack, not the National Guard.

82.   Fire Department hazardous materials experts identified the substance as hydrofluoric acid, often used to etch glass.

83.   Fulton, who is not working with hazardous materials, is out in the open.

84.   Hazardous materials include substances that are explosive, corrosive, toxic, infectious and radioactive.

85.   HAZMAT, or hazardous materials, teams were called in and found there was no biological threat.

86.   Hazardous materials experts said the substance was shredded fibers from packaging material.

87.   Hazardous materials haulers also should be fingerprinted when they apply for special licenses, Butterworth said.

88.   Hart, a hazardous materials technician, flashed back to the time he spent sifting through the rubble at the Alfred P. Murrah Federal Building in Oklahoma City.

89.   Hazardous materials teams in protective suits responded, with sirens blaring.

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