A person is called a US citizen, when he/she is a legal member of the United States. Being a US Citizen , the individual is rewarded with all the rights and privileges that become a part of US Citizenship. The individual may obtain the Social Security and Medicare benefits on retirement. He /she also has the right to vote and choose a government. The US Citizen may obtain a US passport with which he may travel abroad to every country in the world. Also being a US Citizen provides the right to sponsor his/her family to enter US legally and help in obtaining Permanent Resident Card.
An individual may become a US Citizen either at birth or after birth.
If a person is born inside United States he/she is automatically called a US Citizen at birth.
If the person is born outside United States to US Citizen parents, then that person is also said to be as US Citizen at birth. But the individual must claim citizenship through parents.
If the person is born outside US (to non- US Citizen parent(s)) and who has immigrated to United States may obtain US citizenship after birth through a process called Naturalization.
