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.
Walhalla is a city in Pembina County, North Dakota in the United States. It sits on the banks of the Pembina River, five miles (8 km) from the border with Canada. The population was 1,057 at the 2000 census. Walhalla was founded in 1871.