Immigration law determines whether a person is an alien, the rights, duties, and obligations associated with being an alien in the United States, and how aliens gain residence or citizenship within the United States. It also provides the means by which certain aliens can become legally naturalized citizens with full rights of citizenship. Immigration law serves as a gatekeeper for the border of the nation, determining who may enter, how long they may stay, and when they must leave. Immigration lawyers represent persons seeking temporary and permanent residency (green cards) status in the U.S., those interested in obtaining U.S. citizenship through a process called naturalization, and clients facing deportation and removal. Immigration attorneys may also represent businesses seeking to secure temporary visa status for foreign employees.
Clairton is a city in Allegheny County, Pennsylvania, United States, along the Monongahela River and is part of the Pittsburgh Metropolitan Area. The population was 8,491 at the 2000 census. Under Pennsylvania legal classifications for local governments, Clairton is considered a third-class city. The city was the setting for the movie The Deer Hunter (1978), although the opening scene featuring the "City of Prayer" sign was not actually filmed there (other mill towns in the Monongahela River Valley and elsewhere in the tri-state area were used). That sign was based on the signs in Clairton, but that footage was actually shot in Mingo Junction, OH. It also is home to Clairton Works, the largest coke manufacturing facility in the United States. The Montour Trail, a recreational rail-trail extends from Clairton to Coraopolis, Pennsylvania.