Via The New York Times:
The number of illegal immigrants in the [United States] has dropped by as much as 1.3 million in the past year, an 11 percent decline since a historic peak last August, an immigration research group in Washington said in a report released Wednesday. The report, by Steven A. Camarota and Karen Jensenius of the Center for Immigration Studies, found "strong indications" that stepped-up enforcement by immigration authorities had played a major role in the decline.
No way Charlie, it's not the stepped-up enforcement by immigration authorities that's causing this - it's the current sorry state of the US economy that's forcing illegals to leave. Got it!?