Last updated on: 7/16/2010 | Author: ProCon.org

UPDATED: Did You Know?

UPDATED: Did You Know? – 40 tunnels and subterranean passages were discovered under the US-Mexico border from Sep. 11, 2001 to Mar. 16, 2006. As of 2008, the unauthorized immigrant population in the United States was estimated to be approximately 11.6 million. Read these and other little known facts in the immigration debate on our updated resource page.