http://www.cis.org/articles/2006/back106.html
James R. Edwards, Jr.
"Are massive legal immigration and massive illegal immigration related? If so, how? Many in policy circles hold a view of 'Legal immigration, good; illegal immigration, bad.' The logical extensions of such a simplistic perspective are to assume that the overall level of legal immigration does not matter and to underestimate any correlation to illegal immigration. But the facts show a distinct connection exists." [US Backgrounder]
PDF - http://www.cis.org/articles/2006/back106.pdf
