Last year sometime, Ron Paul famously claimed that building a wall on the border with Mexico could be used to keep people in. Many people, myself included, wholeheartedly laughed at him. Well… It seems like we could have been a bit premature. As Fareed Zakaria points out in his latest blog post on GPS, the migration pattern is slowly shifting, as more Mexicans decide to go home and less decide to come to America. Maybe a wall could be used to keep people in after all…

http://globalpublicsquare.blogs.cnn.com/2012/04/27/zakaria-are-mexicans-giving-up-on-u-s/