During World War I, a chemical factory in the highly populated area of Silvertown, England, was used to purify TNT in order to meet the urgent demand for explosive shells. Although a newer, safer plant was built elsewhere, production continued at the factory until a fire ignited 50 tons of TNT in 1917. The explosion killed 73 people, injured hundreds more, and destroyed the plant, many nearby buildings, and a gasholder—sparking an enormous fireball. To what is the low death toll attributed? Discuss (http://forum.thefreedictionary.com/postst52040_The-Silvertown-Explosion--1917-.aspx)