From 1970 to 2010, more than 10 million Mexicans migrated to the US. Now, after decades of rising numbers immigrating to the US, a new demographic trend is playing out: illegal immigration is waning. The Department of Homeland Security said in a 2010 report that the number of immigrants residing unauthorized in the US, 62 percent of whom come from Mexico, has declined from a peak of 11.8 million in January of 2007 to 10.8 million in January of 2010. US Customs and Border Protection also released data showing that the number of those arrested trying to cross the border illegally is is down sharply – by 58 percent since fiscal year 2006. The Pew Hispanic Center, using Mexican government data, estimates that the number of Mexicans annually leaving Mexico for the US declined by 60 percent from 2006 to 2010. Many dispute the reason why. Here are four factors that play a role.
The number of illegal immigrants apprehended while crossing Mexico en route to the US has dropped by almost 70 percent in the past five years, according to Mexican official data.
In the Fast and Furious operation, ATF agents lost track of as many as 2,500 high-powered firearms. Acting Director Kenneth Melson has stepped down, but a congressional investigation will continue.
In the era of narco-submarines and tanks, the tried and true tunnel remains popular, especially along Arizona's Mexican border. The latest reminds Douglas locals of the legendary one from 1990.
Khapra beetle is discovered in rice shipment from India. US interceptions of khapra beetle are up dramatically this year.
Fast and Furious, the Mexico gun-running sting gone bad, may cost the ATF's acting chief his job. A larger concern is that it may undermine efforts to stop the flow of US guns south.
GPS devices in the hands of migrant smugglers could save the lives of their human cargo, he says. But the US Border Patrol warns that the devices only encourage people to make the dangerous trip across the Arizona desert.
Seven top immigration officials in Mexico have been fired in states where migrants have been victimized. Recently, a group of rescued kidnap victims accused officials of delivering them to drug gangs.