Josh and Ryan, with Tom as moderator, discuss whether we should build a  border wall with Mexico. The discussion is wide-ranging, covering  immigration, global inequality, and political incompetence. There are some twists and turns in this one - Josh takes a meta approach while  Ryan gets into the weeds. In the end, there is general agreement that a  border wall isn't a solution to the real problems that are leading to the desire to migrate to the United States.