While the Department of Homeland Security has taken credit for a significant drop in unauthorized immigration since 2007, pointing to increased enforcement by
“„Ultimately, it is impossible to disentangle the impact of the recession from that of enforcement with any degree of certainty. Nevertheless, the available research indicates that the recession is likely playing a major role in discouraging new unauthorized immigrants from entering the country due to the lack of jobs. … Research also suggests that when the economy begins to improve again, unauthorized immigration is likely to increase as well—unless the broken immigration systemwhich spurs unauthorized migration has been fixed by then.
