Some interesting insights into US Mexico border relationships.
Mike
http://www.independent.org/publications/tir/article.asp?a=743
If Mexicans and Americans Could Cross the Border Freely
By Jacques Delacroix
<http://www.independent.org/aboutus/person_detail.asp?id=1123>
Sergey Nikiforov
<http://www.independent.org/aboutus/person_detail.asp?id=1387>