1. Research Assistant, Hazard Reduction & Recovery Center, Texas A&M Univ., College Station, TX 77843-3137.
2. Professor, Hazard Reduction & Recovery Center, Texas A&M Univ., College Station, TX 77843-3137 (corresponding author).
3. Associate Director, Hazard Reduction & Recovery Center, Texas A&M Univ., College Station, TX 77843-3137.
4. Professor, Dept. of Public Administration, Univ. of North Texas, Denton, TX 76203-5017.