Well, if you want to be technical, we had a major role in it.
What's the issue?
Corn.
Mainly, American corn subsidies and NAFTA.
The numbers we're looking at are over a million Mexicans losing their agricultural jobs since NAFTA went into effect in 1994. Tariffs that protected the industry ended in January 2008. Thus, these farmers were put into direct competition with U.S. farmers. Do you even need examples that compare the two in technology? If you look at the Department of Agriculture, a U.S. farm can produce up to a metric ton of corn in a half-hour (and this is probably not up-to-date information). America is exporting this corn to Mexico. We're forcing these people to find work in other places and their isn't enough jobs in their own cities, i.e. coming to the United States to find work and to, hopefully, bring that money back to their families. We're talking about a rational attempt at survival.
The worst part? We expected it. Nader is reported as estimation that