56% of Mexican undocumenteds arrested in U.S. are repeat offenders

The numbers were published in today's New York Times, which said that many undocumenteds now regard the United States as their permanent home. Although economic opportunities in Mexico have notably improved in recent years, illegals are prepared to take significant risks by repeatedly crossing the frontier so that they can unite with family members in the U.S. Undocumented persons are arrested and deported, but more than half eventually return in what the Times calls the "yo-yo effect." The rate was up from 44% in 2005.
It is estimated that 11 million undocumented persons live in the United States, of which about 60%, or 6.6 million, are Mexican.