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.
Clifton Heights is a borough in Delaware County, Pennsylvania, six miles (10 km) west of downtown Philadelphia and on Darby Creek. The population was at 2,330 in 1900, and 3,155 in 1910. The population was 6,779 at the 2000 census.