A new analysis of birth records by the Center for Immigration Studies shows that in 2002 almost one in four births in the United States was to an immigrant mother (legal and illegal), the highest level in American history. In addition, nearly ten percent of all births in the country were to illegal-alien mothers. It is currently U.S. government policy to award American citizenship to all persons born on U.S. soil, even the children of tourists and illegal aliens. In 2002, 23 percent of all births in the United States were to immigrant mothers (legal or illegal), compared to 15 percent in 1990, 9 percent in 1980 and 6 percent in 1970. The states with the most dramatic increase in births to immigrants in the last decade are Georgia, North Carolina, Nevada, Nebraska, Arkansas, Arizona, Tennessee, Minnesota, Colorado, Delaware, Virginia, and Maryland.