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.
Nanjemoy is a large rural area in Charles County, Maryland, United States more or less bounded by the Nanjemoy Creek and the Potomac River. It shares its name with a Native American tribe. Nanjemoy houses the largest great blue heron rookery in the east north of Florida. A radio astronomical observatory is located near the Potomac River; it used to be operated by the U.S. Naval Research Laboratory but was later transferred to the Nanjemoy Creek Environmental Education Center. The county government maintains a large community center building in the village center which offers many services for a diverse population. There are also two children's camps and a sheriffs' training facility. Famous people born in Nanjemoy include Raphael Semmes, captain of the Confederate battleship "Alabama", and Matthew Henson, who with Robert Peary discovered the North Pole.