Fraudulent Social Security cards, driver's licenses and birth certificates are being bought by thousands of illegal immigrants each year. These false documents are used by individuals to get millions of dollars worth of welfare, public housing and Social Security benefits.
Here are a few sources to look at:
They Really Are Here Illegally
http://www.chronwatch.com/content/contentDisplay.asp?aid=13763
ILLEGAL IMMIGRATION
http://www.ripoffs.org/immigration.html
Illegal Immigrants Get Workers' Compensation
http://www.sacunion.com/pages/california/articles/6592/
How Much Do Illegal Aliens Cost U.S. Taxpayers?
http://www.house.gov/garymiller/IllegalsCost2005.html