World Trade Center / North Tower / Twin Towers / National Institute of Standards and Technology / Diameter Debris Field Centered Around Each Tower / Building Structure / World Trade Center Twin Towers / /
National Fire Protection Association / National Institute of Standards and Technology / Federal Emergency Management Agency / US Department of Health and Human Services / New York Fire Department / office of Research Integrity / /
Person
Michael R. Smith / John D. Wyndham / Wayne H. Coste / /