And Voices of Reason from the Cato Institute

If we want to “get control” of our border with Mexico, the smartest thing we could do would be to allow more workers to enter the United States legally under the umbrella of comprehensive immigration reform. Then we could focus our enforcement resources on a much smaller number of people who for whatever reason are still operating outside the law.

http://www.cato-at-liberty.org/2010/04/29/to-control-the-border-first-reform-immigration-law/