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.
Kelso is a city in southwest Washington State, United States, and is the county seat of Cowlitz County. At the 2000 census, the population was 11,895. Kelso is part of the Longview, Washington Metropolitan Statistical Area, which has a population of 101,254.. Kelso shares its long western border with Longview, Washington. It is located near Mount St. Helens.