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.
For the Illinois village formerly known as Vienna, see Astoria, Illinois Vienna is a city in Johnson County, Illinois, United States. The population was 1,234 at the 2000 census. It is the county seat of Johnson County, and the site of a well-known state penitentiary. Heron Pond - Little Black Slough Nature Preserve, a National Natural Landmark, is nearby. The town's name is pronounced differently from the English name for the Austrian capital of the same name.