Is Immigration a Right? or a Privilege?

Net migration rates for 2011: positive (blue), negative (orange), stable (green), and no data (grey).

Find this and much  more information about immigration on wikipedia.com.  In the Ethics section you can read...
Although freedom of movement is often recognized as a civil right, the freedom only applies to movement within national borders: it may be guaranteed by the constitution or by human rights legislation. Additionally, this freedom is often limited to citizens and excludes others. No state currently allows full freedom of movement across its borders, and international human rights treaties do not confer a general right to enter another state. Proponents of immigration maintain that, according to Article 13 of the Universal Declaration of Human Rights, everyone has the right to leave or enter a country, along with movement within it (internal migration), although article 13 actually restricts freedom of movement to "within the borders of each state." Additionally, the UDHR does not mention entry into other countries when it states that "everyone has the right to leave any country, including his own, and to return to his country." Some argue that the freedom of movement both within and between countries is a basic human right, and that the restrictive immigration policies, typical of nation-states, violate this human right of freedom of movement. Such arguments are common among anti-state ideologies like anarchism and libertarianism. As philosopher and "Open Borders" activist Jacob Appel has written, "Treating human beings differently, simply because they were born on the opposite side of a national boundary, is hard to justify under any mainstream philosophical, religious or ethical theory." However, Article 14 does provide that "everyone has the right to seek and to enjoy in other countries asylum from persecution."

What do you think??