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.
Walnut is a city in Pottawattamie County, Iowa, United States. The population was 778 at the 2000 census. Walnut is located on Interstate 80 and is famous for its many antique stores. In recent years Walnut has become a regional center of wind turbine electrical generation.