Now will Mexico build a wall to keep U.S.ians out?

For Mexicans Looking North, a New Calculus Favors Home - Interactive Feature - NYTimes.com

AGUA NEGRA, Mexico — The extraordinary Mexican migration that delivered millions of illegal immigrants to the United States over the past 30 years has sputtered to a trickle, and research points to a surprising cause: unheralded changes in Mexico that have made staying home more attractive....

Douglas S. Massey, co-director of the Mexican Migration Project at Princeton, an extensive, long-term survey in Mexican emigration hubs, said his research showed that interest in heading to the United States for the first time had fallen to its lowest level since at least the 1950s. “No one wants to hear it, but the flow has already stopped,” Mr. Massey said, referring to illegal traffic. “For the first time in 60 years, the net traffic has gone to zero and is probably a little bit negative.”