Census Reveals Huge Impact of Immigration

2010 US Census Reveals Huge Impact of Immigration:  Of the total increase of more than 27 million since the 2000 census, about 56 percent of the increase, is due to growth in the Hispanic/Latino population, and about 15 percent, is due to a rise in the smaller Asian population. Both these groups burgeoned by about 43 percent last decade, and together they have accounted for 71 percent of U.S. population gain since 2000.

Enforcing a numerical goal on immigration is hard because we have to deny admission to millions of aspiring residents, not because they're bad people, but simply because their admission would exceed our legal capacity.

http://www.ilw.com/articles/2011,0406-ting.shtm