To Daryl: what is it with you conservatives that you only quote the pieces of documents that you like? I mean seriously, dude. The report you cite from the National Academy of Sciences also concluded: "Immigration is integral to the nation’s economic growth. The inflow of labor supply has helped the United States avoid the problems facing other economies that have stagnated as a result of unfavorable demographics, particularly the effects of an aging work force and reduced consumption by older residents. In addition, the infusion of human capital by high-skilled immigrants has boosted the nation’s capacity for innovation, entrepreneurship, and technological change." If you want to be hating on brown people, you just go ahead and be you but don't try to come across as anything more than a disingenuous bigot if you're going to slide and dice only the words you like out of a nearly 600 page report.