Mexico Asks Federal Court To Reject Arizona Law http://www.bostonherald.com/news/international/americas/view.bg?articleid=1263320&srvc=rss Why? Because remittances from workers to their families back home is one of the largest sources of income for the Mexican economy. According to a Businessweek article from 2009, it was their second largest source of income. I guess they fear that spigot getting turned off. http://www.businessweek.com/ap/financialnews/D9E5V7VO3.htm