The number of illegal immigrants living in the United States dropped to 10.6 million in 2009 from 11.6 million in 2008, the sharpest decrease in 30 years and a second straight year of decline, according to a Department of Homeland Security report released this week.
Some immigration-control groups say the decline is happening primarily because of a buildup of border patrol and surveillance and that the buildup should thus continue to further reduce illegal immigration. Other groups claim it is a result of the poor economy. Some say it is both, and still others doubt the statistics altogether. http://abcnews.go.com/story?id=9820177
By DANIEL B. WOOD -- ABC News
Updated: Mon, Feb 15th 2010 @ 10:58am EST