"Unemployment has hit migrant communities in the United States so hard that a startling new phenomenon has been detected: instead of receiving remittances from relatives in the richest country on earth, some down-and-out Mexican families are scraping together what they can to support their unemployed loved ones in the United States."

http://www.nytimes.com/2009/11/16/world/americas/16mexico.html?_r=1&ref=americas