Cause of Arizona’s estimated drop in immigrant population contested

The estimated illegal immigrant population in the U.S. fell nationally from 11.6 million in  2010 to 11.5 million in January 2011, with 360,000 illegal immigrants living in Arizona, according to a March Department of Homeland Security report.

http://www.statepress.com/2012/04/01/cause-of-arizonas-estimated-drop-in-immigrant-population-contested/