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.
Prole is an unincorporated community in northwestern Warren County, Iowa, United States. It lies along Iowa Highway 28 northwest of the city of Indianola, the county seat of Warren County. Its elevation is 978 feet (298 m), and it is located at 41°24′33″N 93°43′38″W / 41.40917°N 93.72722°W / 41.40917; -93.72722 (41.4091580, -93.7271648). Although Prole is unincorporated, it has a post office, with the ZIP code of 50229, which opened on 25 September 1884.