A mass tort is a civil action involving numerous plaintiffs against one or a few corporate defendants. The tort may involve, for example, personal injuries suffered by numerous plaintiffs as a result of a defective product, or a mass disaster in which there were many injured persons, such as an airplane crash, or exposure of a large group of people to toxic chemicals or pharmaceuticals.
Derby is a city in Sedgwick County, Kansas, United States. Formerly known as El Paso, it is a suburb of Wichita. The population was 17,807 at the 2000 census. Derby was recently named one of the "10 Best Towns for Families" by Family Circle magazine.