I wrote this a little while back, but at this rate, I may be re-posting the article annually. It’s hard to believe because researchers have known for decades a border wall with Mexico will not keep people out. If anything, our current system of border security tends to keep people in . This article published in Chatham County Line explains the unexpected consequences of building a wall. Be sure to check out the Spanish language version courtesy of Luis Melodelgado's skillful translation!