Why a border fence won't work

If you've been reading here for any amount of time, you know that I'm not a big fan of buiding a fence along the U.S.-Mexico border. I am a strong proponent of renovating our immigration policy, but I believe that there is no need to implement a plan that will not address the core reasons why we have such a large population of undocumented immigrants. This article from the on-line Washington Post highlights some of the reasons why a border enformcement immigration policy will only address part of the issue, and more importantly, it presents alternatives that may actually work.