If you’ve been near a delivery room in the past few years, you may already have noticed that illegal immigrants account for 1 in 12 US births:
Undocumented immigrants make up slightly more than 4% of the U.S. adult population. However, their babies represented twice that share, or 8%, of all births on U.S. soil in 2008, according to the nonpartisan Pew Hispanic Center’s report.